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

81617961 (number)

81617961 is an odd 8-digits composite number following 81617960 and preceding 81617962. In scientific notation, it is written as 8.1617961 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 52046192 positive integers (up to 81617961) that are relatively prime to 81617961.

Interesting facts

81617961 has 8 divisors, whose sum is 113555520
The reverse of 81617961 is 16971618
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	eighty-one million six hundred seventeen thousand nine hundred sixty-one

Notation

Scientific notation	8.1617961 × 10^7
Engineering notation	8.1617961 × 10^6

Prime Factorization of 81617961

Prime Factorization 3 × 23 × 1182869

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81617961	Product of the distinct prime numbers

The prime factorization of 81617961 is 3 × 23 × 1182869. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 2, 28, 73, 872, 804, 6181, 160, 13661, 10398, 14587, 700867, 5802961, 8967160, 79236454, 93197833, 423719527, 887006146, 8978909901, 1456196039

Basic calculations (n = 81617961)

Multiplication

n×y

n×2	163235922
n×3	244853883
n×4	326471844
n×5	408089805

Division

n÷y

n÷2	40808980.5
n÷3	27205987
n÷3	20404490.25
n÷5	16323592.2

Exponentiation

n^y

n²	6661491557797521
n³	5.4369735816615E+23
n⁴	4.4375469774608E+31
n⁵	3.6218353614206E+39

Nth Root

^y√n

²√n	9034.2659358688
³√n	433.77239830409
⁴√n	95.048755572437
⁵√n	38.22584972774

Divisors of 81617961

1, 3, 23, 69, 1182869, 3548607, 27205987, 81617961

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	-81617960	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 81617961 can be divided by 8 positive divisors. The sum of these divisors (counting 81617961) is 1, the average is 0.125.

Base conversion 81617961

Base	System	Value
2	Binary	100110111010110010000101001
3	Ternary	12200120121210110
4	Quaternary	10313112100221
5	Quinary	131343233321
6	Senary	12033204533
8	Octal	467262051
10	Decimal	81617961
12	Duodecimal	23400749
16	Hexadecimal	4dd6429
20	Vigesimal	15a24i1
36	Base36	1clctl

Cryptographic Hash Functions

md5	f8dcae8c0558675b7fedc2d55928044a
sha1	6f16108e351465f0ab80d1facae1042b39e7e4ae
sha256	22cd4444d4843db0f38c2b00862f44d0949c5e12ed942b917dea7d859cc880b1
sha512	9fb5fad8e7a15e9a47382c54b0169f6aa5a040406634e09512eb74477ca88ff807cfdff85b5ed06a0b8cb56518d72db7ade3ef8b37cfde004d8bd9ebb76d2590
ripemd-160	73e87b3cef3f34eb0fb1a798580e135936daf214

81617961 as geometric shapes

Circle

Radius = n

Diameter	163235922
Circumference	512820773.35716
Area	2.0927692939927E+16

Sphere

Radius = n

Volume	2.2774341682546E+24
Surface area	8.3710771759708E+16
Circumference	512820773.35716

Square

Length = n

Perimeter	326471844
Area	6661491557797521
Diagonal	115425227.37944

Cube

Length = n

Surface area	39968949346785126
Volume	5.4369735816615E+23
Space diagonal	141366455.26218

Equilateral Triangle

Length = n

Perimeter	244853883
Area	2.8845104580741E+15
Altitude	70683227.631088

Triangular Pyramid

Length = n

Surface area	2.8845104580741E+15
Volume	6.4075348145416E+22
Height	38475075.793146