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

81129737 (number)

81129737 is an odd 8-digits composite number following 81129736 and preceding 81129738. In scientific notation, it is written as 8.1129737 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 74888976 positive integers (up to 81129737) that are relatively prime to 81129737.

Interesting facts

81129737 has 4 divisors, whose sum is 87370500
The reverse of 81129737 is 73792118
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million one hundred twenty-nine thousand seven hundred thirty-seven

Notation

Scientific notation	8.1129737 × 10^7
Engineering notation	8.1129737 × 10^6

Prime Factorization of 81129737

Prime Factorization 13 × 6240749

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81129737	Product of the distinct prime numbers

The prime factorization of 81129737 is 13 × 6240749. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 3, 83, 711, 529, 3611, 5161, 1744, 41911, 307189, 879575, 6177624, 2756694, 69445065, 73233623, 743080902, 966926976, 1240057228, 7105889172

Basic calculations (n = 81129737)

Multiplication

n×y

n×2	162259474
n×3	243389211
n×4	324518948
n×5	405648685

Division

n÷y

n÷2	40564868.5
n÷3	27043245.666667
n÷3	20282434.25
n÷5	16225947.4

Exponentiation

n^y

n²	6582034225689169
n³	5.3399870565516E+23
n⁴	4.3323174548144E+31
n⁵	3.514797757096E+39

Nth Root

^y√n

²√n	9007.204727328
³√n	432.90575173684
⁴√n	94.906294455784
⁵√n	38.180007873993

Divisors of 81129737

1, 13, 6240749, 81129737

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	-81129736	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 81129737 can be divided by 4 positive divisors. The sum of these divisors (counting 81129737) is 1, the average is 0.25.

Base conversion 81129737

Base	System	Value
2	Binary	100110101011111000100001001
3	Ternary	12122122211002002
4	Quaternary	10311133010021
5	Quinary	131232122422
6	Senary	12014520345
8	Octal	465370411
10	Decimal	81129737
12	Duodecimal	232060b5
16	Hexadecimal	4d5f109
20	Vigesimal	157146h
36	Base36	1caw3t

Cryptographic Hash Functions

md5	9a87e9b5616c427e0ffc8496163999d7
sha1	7656fb24bf00217791038197b8ae66e6f91637dd
sha256	2100f2110dd31fc1028eff51e1ba48bda0d69021bb86adf55953a0fcc3930c9d
sha512	324e984de7c0a9759f0e2f00f436f84f5a7d2471f6a0b9e769229d3ef2a523160110dae8392d7e97ca35dfa817cb33f47ab762798dacbf3de1ed277cc86ede2c
ripemd-160	c0f0e0a17abe5daba3cea377472e0401001a5d89

81129737 as geometric shapes

Circle

Radius = n

Diameter	162259474
Circumference	509753171.49374
Area	2.0678070369102E+16

Sphere

Radius = n

Volume	2.2368085476169E+24
Surface area	8.2712281476407E+16
Circumference	509753171.49374

Square

Length = n

Perimeter	324518948
Area	6582034225689169
Diagonal	114734774.37716

Cube

Length = n

Surface area	39492205354135014
Volume	5.3399870565516E+23
Space diagonal	140520826.4887

Equilateral Triangle

Length = n

Perimeter	243389211
Area	2.8501044240127E+15
Altitude	70260413.24435

Triangular Pyramid

Length = n

Surface area	2.8501044240127E+15
Volume	6.2932350985601E+22
Height	38244924.792387