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

81497842 (number)

81497842 is an even 8-digits composite number following 81497841 and preceding 81497843. In scientific notation, it is written as 8.1497842 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 40748920 positive integers (up to 81497842) that are relatively prime to 81497842.

Interesting facts

81497842 has 4 divisors, whose sum is 122246766
The reverse of 81497842 is 24879418
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	eighty-one million four hundred ninety-seven thousand eight hundred forty-two

Notation

Scientific notation	8.1497842 × 10^7
Engineering notation	8.1497842 × 10^6

Prime Factorization of 81497842

Prime Factorization 2 × 40748921

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81497842	Product of the distinct prime numbers

The prime factorization of 81497842 is 2 × 40748921. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 6, 6, 66, 264, 328, 5970, 6918, 43778, 14762, 107702, 791274, 1974346, 941414, 95560707, 79313762, 922383761, 407886932, 2026753699, 6864342686

Basic calculations (n = 81497842)

Multiplication

n×y

n×2	162995684
n×3	244493526
n×4	325991368
n×5	407489210

Division

n÷y

n÷2	40748921
n÷3	27165947.333333
n÷3	20374460.5
n÷5	16299568.4

Exponentiation

n^y

n²	6641898250656964
n³	5.4130037421212E+23
n⁴	4.411481237208E+31
n⁵	3.5952620085594E+39

Nth Root

^y√n

²√n	9027.6155212769
³√n	433.55949627443
⁴√n	95.013764904233
⁵√n	38.214591528611

Divisors of 81497842

1, 2, 40748921, 81497842

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	-81497841	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 81497842 can be divided by 4 positive divisors. The sum of these divisors (counting 81497842) is 1, the average is 0.25.

Base conversion 81497842

Base	System	Value
2	Binary	100110110111000111011110010
3	Ternary	12200100112000121
4	Quaternary	10312320323302
5	Quinary	131330412332
6	Senary	12030440454
8	Octal	466707362
10	Decimal	81497842
12	Duodecimal	2336312a
16	Hexadecimal	4db8ef2
20	Vigesimal	15974c2
36	Base36	1cis4y

Cryptographic Hash Functions

md5	56e3e1bb696a5ba6e23f9dc72640ae91
sha1	318759b970842ec9f325335a87a640b559c7db05
sha256	d0819f5c3c33309ef02136aa0d4f89f722672b05c7f8f1769c26cfa200a191fc
sha512	2e2cba6b902c4c88665e48ea51c21cb82976e940c8bc013c6af947b412711f129a44d37d719c2e78a0e4b8d82fa0edf36f87836ebf327b59cd9dfcdd08fc3ab5
ripemd-160	483bf5e86525a43a1a5f69eee6ed29314b087916

81497842 as geometric shapes

Circle

Radius = n

Diameter	162995684
Circumference	512066043.42124
Area	2.0866138750155E+16

Sphere

Radius = n

Volume	2.2673937053469E+24
Surface area	8.3464555000619E+16
Circumference	512066043.42124

Square

Length = n

Perimeter	325991368
Area	6641898250656964
Diagonal	115255353.46054

Cube

Length = n

Surface area	39851389503941784
Volume	5.4130037421212E+23
Space diagonal	141158403.05122

Equilateral Triangle

Length = n

Perimeter	244493526
Area	2.8760263072102E+15
Altitude	70579201.52561

Triangular Pyramid

Length = n

Surface area	2.8760263072102E+15
Volume	6.3792860877367E+22
Height	38418451.153513