What is the largest prime number less than 130, which is also a palindrome?

The largest prime palindrome less than 130 is 131. This number is both prime and a palindrome, as it reads the same forward and backward.

Question: What is the value of 3 raised to the power of the sum of the digits in the number 129, divided by the square root of the product of its digits?

To find the value, we need to calculate 3^(1+2+9) / √(1×2×9). First, the sum of the digits in 129 is 12. So, the numerator becomes 3^12. The product of the digits is 1×2×9 = 18. Taking the square root of 18 gives us √18. Therefore, the final expression is 3^12 / √18. Simplifying further, 3^12 = 531,441, and √18 ≈ 4.2426. Hence, the value of the expression is approximately 531,441 / 4.2426 = 125,228.24 (rounded to two decimal places). Thus, the answer is 125,228.24.

Math question: What is the sum of all odd integers between 1 and 129, inclusive?

To find the sum of odd integers from 1 to 129, we can use the formula for the sum of an arithmetic series: S = (n/2)(a + l), where S is the sum, n is the number of terms, a is the first term, and l is the last term. The first odd integer is 1, and the last odd integer less than or equal to 129 is 129. The number of terms, n, can be calculated as (l - a)/2 + 1, since the common difference in this sequence is 2. So, n = (129 - 1)/2 + 1 = 65 terms. Plugging in the values into the formula: S = (65/2)(1 + 129) = 65(130) = 8450. Therefore, the sum of all odd integers between 1 and 129 is 8450.

Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

129 (number)

129 is an odd 3-digits composite number following 128 and preceding 130. In scientific notation, it is written as 1.29 × 10^2. The sum of its digits is 12. It has a total of 2 prime factors and 4 positive divisors. There are 84 positive integers (up to 129) that are relatively prime to 129.

Interesting facts

129 has 4 divisors, whose sum is 176
The reverse of 129 is 921
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 3
Sum of Digits 12
Digital Root 3

Name

Name	one hundred twenty-nine

Notation

Scientific notation	1.29 × 10^2
Engineering notation	1.29 × 10^0

Prime Factorization of 129

Prime Factorization 3 × 43

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	129	Product of the distinct prime numbers

The prime factorization of 129 is 3 × 43. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 1, 16, 37, 641, 35, 2060, 9026, 48604, 28129, 616565, 828996, 9392262, 5384358, 2890318, 39738807, 496894687, 342338652, 5115569055, 3188530224

Basic calculations (n = 129)

Multiplication

n×y

n×2	258
n×3	387
n×4	516
n×5	645

Division

n÷y

n÷2	64.5
n÷3	43
n÷3	32.25
n÷5	25.8

Exponentiation

n^y

n²	16641
n³	2146689
n⁴	276922881
n⁵	35723051649

Nth Root

^y√n

²√n	11.357816691601
³√n	5.0527743472086
⁴√n	3.3701360049115
⁵√n	2.6431264580214

Divisors of 129

1, 3, 43, 129

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-128	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 129 can be divided by 4 positive divisors. The sum of these divisors (counting 129) is 1, the average is 0.25.

Base conversion 129

Base	System	Value
2	Binary	10000001
3	Ternary	11210
4	Quaternary	2001
5	Quinary	1004
6	Senary	333
8	Octal	201
10	Decimal	129
12	Duodecimal	a9
16	Hexadecimal	81
20	Vigesimal	69
36	Base36	3l

Cryptographic Hash Functions

md5	d1f491a404d6854880943e5c3cd9ca25
sha1	8b7471f4ae0bf59f5f0a425068c05d96f4801b9e
sha256	6566230e3a3ce3774c1bbc7c18b590ae0f457bbcd511e90e3e7dca2a02e7addc
sha512	4f593caa3b94b9892eaa62ebb1e737e0b93f63c57c6303ddc49ee76800b0bd7af49dae671591befca11ef0af8e91e45d5954aa1ba0d4b64fd477283729c3aa11
ripemd-160	7fa44eb89c9d650f75137af45ddffebcb2891d84

129 as geometric shapes

Circle

Radius = n

Diameter	258
Circumference	810.53090462617
Area	52279.243348388

Sphere

Radius = n

Volume	8992029.8559227
Surface area	209116.97339355
Circumference	810.53090462617

Square

Length = n

Perimeter	516
Area	16641
Diagonal	182.43354954613

Cube

Length = n

Surface area	99846
Volume	2146689
Space diagonal	223.43455417639

Equilateral Triangle

Length = n

Perimeter	387
Area	7205.7643721884
Altitude	111.71727708819

Triangular Pyramid

Length = n

Surface area	7205.7643721884
Volume	252989.72483309
Height	60.811183182043