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

81121012 (number)

81121012 is an even 8-digits composite number following 81121011 and preceding 81121013. In scientific notation, it is written as 8.1121012 × 10^7. The sum of its digits is 16. It has a total of 4 prime factors and 12 positive divisors. There are 34766136 positive integers (up to 81121012) that are relatively prime to 81121012.

Interesting facts

81121012 has 12 divisors, whose sum is 162242080
The reverse of 81121012 is 21012118
Previous prime number is 7

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7

Name

Name	eighty-one million one hundred twenty-one thousand twelve

Notation

Scientific notation	8.1121012 × 10^7
Engineering notation	8.1121012 × 10^6

Prime Factorization of 81121012

Prime Factorization 2 × 2 × 7 × 2897179

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	40560506	Product of the distinct prime numbers

The prime factorization of 81121012 is 2 × 2 × 7 × 2897179. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 25, 20, 333, 828, 8167, 9064, 82518, 11734, 985315, 241357, 6671641, 7070935, 36934222, 54994116, 718349353, 15175256, 8492354799, 7726449141

Basic calculations (n = 81121012)

Multiplication

n×y

n×2	162242024
n×3	243363036
n×4	324484048
n×5	405605060

Division

n÷y

n÷2	40560506
n÷3	27040337.333333
n÷3	20280253
n÷5	16224202.4

Exponentiation

n^y

n²	6580618587904144
n³	5.338264394368E+23
n⁴	4.330454099947E+31
n⁵	3.5129081900725E+39

Nth Root

^y√n

²√n	9006.7203798053
³√n	432.89023240433
⁴√n	94.903742707047
⁵√n	38.179186634058

Divisors of 81121012

1, 2, 4, 7, 14, 28, 2897179, 5794358, 11588716, 20280253, 40560506, 81121012

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81121011	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81121012 can be divided by 12 positive divisors. The sum of these divisors (counting 81121012) is 1, the average is 0.083333333333333.

Base conversion 81121012

Base	System	Value
2	Binary	100110101011100111011110100
3	Ternary	12122122101002221
4	Quaternary	10311130323310
5	Quinary	131231333022
6	Senary	12014412124
8	Octal	465347364
10	Decimal	81121012
12	Duodecimal	23201044
16	Hexadecimal	4d5cef4
20	Vigesimal	15702ac
36	Base36	1capdg

Cryptographic Hash Functions

md5	db219a2880a4eefe09e888b1c6c60def
sha1	e4a3cdedab036233711dfc29665ef69bd1428aed
sha256	1a3371e7cd33b94b9ac8bf45f0beabfdaf0591e768c81238af8051b2baa7a95a
sha512	f1ef6e454a8e147e272ae7599bef09453d3dab14fb2a3f5c1b54321007ef5f65558a13d74b0292877a1ae9469ca9b3833fef4f9cd06877a39091a322412ec436
ripemd-160	f3dc7b47a85a6517229a139bb4be52e99247e070

81121012 as geometric shapes

Circle

Radius = n

Diameter	162242024
Circumference	509698350.70194
Area	2.0673623011836E+16

Sphere

Radius = n

Volume	2.2360869605688E+24
Surface area	8.2694492047344E+16
Circumference	509698350.70194

Square

Length = n

Perimeter	324484048
Area	6580618587904144
Diagonal	114722435.36383

Cube

Length = n

Surface area	39483711527424864
Volume	5.338264394368E+23
Space diagonal	140505714.3454

Equilateral Triangle

Length = n

Perimeter	243363036
Area	2.8494914348705E+15
Altitude	70252857.172702

Triangular Pyramid

Length = n

Surface area	2.8494914348705E+15
Volume	6.2912049217071E+22
Height	38240811.787944