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

81749429 (number)

81749429 is an odd 8-digits composite number following 81749428 and preceding 81749430. In scientific notation, it is written as 8.1749429 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 77693616 positive integers (up to 81749429) that are relatively prime to 81749429.

Interesting facts

81749429 has 8 divisors, whose sum is 85850880
The reverse of 81749429 is 92494718
Previous prime number is 157

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	eighty-one million seven hundred forty-nine thousand four hundred twenty-nine

Notation

Scientific notation	8.1749429 × 10^7
Engineering notation	8.1749429 × 10^6

Prime Factorization of 81749429

Prime Factorization 23 × 157 × 22639

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81749429	Product of the distinct prime numbers

The prime factorization of 81749429 is 23 × 157 × 22639. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 87, 45, 85, 608, 5744, 5757, 24368, 8903, 128403, 803530, 7856887, 5377689, 71364311, 59184040, 966570412, 690914632, 6995247033, 9262893589

Basic calculations (n = 81749429)

Multiplication

n×y

n×2	163498858
n×3	245248287
n×4	326997716
n×5	408747145

Division

n÷y

n÷2	40874714.5
n÷3	27249809.666667
n÷3	20437357.25
n÷5	16349885.8

Exponentiation

n^y

n²	6682969141826041
n³	5.463289113689E+23
n⁴	4.4662076550599E+31
n⁵	3.6510992559658E+39

Nth Root

^y√n

²√n	9041.5390835853
³√n	434.00517630642
⁴√n	95.087007964208
⁵√n	38.238156433559

Divisors of 81749429

1, 23, 157, 3611, 22639, 520697, 3554323, 81749429

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81749428	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81749429 can be divided by 8 positive divisors. The sum of these divisors (counting 81749429) is 1, the average is 0.125.

Base conversion 81749429

Base	System	Value
2	Binary	100110111110110010110110101
3	Ternary	12200211022010122
4	Quaternary	10313312112311
5	Quinary	131411440204
6	Senary	12040101325
8	Octal	467662665
10	Decimal	81749429
12	Duodecimal	23464845
16	Hexadecimal	4df65b5
20	Vigesimal	15aidb9
36	Base36	1co69h

Cryptographic Hash Functions

md5	0ef7ca038a1a0d1b137ce125c7f2c808
sha1	74dabec345d2414b25ea858aa79b69b797178b91
sha256	0d5e1d678546aa0728683b2db80a8a28d0620d36869446bc53c0304ed98623d0
sha512	20f1411a1a515ba889c7978014575c2ce0fe96ac2ede4a416a8b4fe3e2c74b1842842414b3983877c81705245a5682766695b78f9516d8ed0347fae80329641c
ripemd-160	d2b312ae8053d50b610c98f14908e6d923d6b853

81749429 as geometric shapes

Circle

Radius = n

Diameter	163498858
Circumference	513646811.16312
Area	2.0995166760128E+16

Sphere

Radius = n

Volume	2.2884571925337E+24
Surface area	8.3980667040512E+16
Circumference	513646811.16312

Square

Length = n

Perimeter	326997716
Area	6682969141826041
Diagonal	115611151.20806

Cube

Length = n

Surface area	40097814850956246
Volume	5.463289113689E+23
Space diagonal	141594164.51774

Equilateral Triangle

Length = n

Perimeter	245248287
Area	2.8938105247644E+15
Altitude	70797082.258872

Triangular Pyramid

Length = n

Surface area	2.8938105247644E+15
Volume	6.4385479664535E+22
Height	38537050.402685