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

72156981 (number)

72156981 is an odd 8-digits composite number following 72156980 and preceding 72156982. In scientific notation, it is written as 7.2156981 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 44404272 positive integers (up to 72156981) that are relatively prime to 72156981.

Interesting facts

72156981 has 8 divisors, whose sum is 103610080
The reverse of 72156981 is 18965127
Previous prime number is 3

Basic properties

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

Name

Name	seventy-two million one hundred fifty-six thousand nine hundred eighty-one

Notation

Scientific notation	7.2156981 × 10^7
Engineering notation	7.2156981 × 10^6

Prime Factorization of 72156981

Prime Factorization 13 × 3 × 1850179

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	72156981	Product of the distinct prime numbers

The prime factorization of 72156981 is 13 × 3 × 1850179. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 72, 28, 153, 866, 9197, 3117, 97436, 65342, 689143, 468012, 8681624, 3962116, 98817533, 48861784, 464386034, 598144959, 934201158, 5821476663

Basic calculations (n = 72156981)

Multiplication

n×y

n×2	144313962
n×3	216470943
n×4	288627924
n×5	360784905

Division

n÷y

n÷2	36078490.5
n÷3	24052327
n÷3	18039245.25
n÷5	14431396.2

Exponentiation

n^y

n²	5206629907034361
n³	3.7569469527591E+23
n⁴	2.7108994988825E+31
n⁵	1.9561032363377E+39

Nth Root

^y√n

²√n	8494.5265318321
³√n	416.31889110372
⁴√n	92.165755743834
⁵√n	37.295434476038

Divisors of 72156981

1, 3, 13, 39, 1850179, 5550537, 24052327, 72156981

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	-72156980	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 72156981 can be divided by 8 positive divisors. The sum of these divisors (counting 72156981) is 1, the average is 0.125.

Base conversion 72156981

Base	System	Value
2	Binary	100010011010000011100110101
3	Ternary	12000202221202210
4	Quaternary	10103100130311
5	Quinary	121433010411
6	Senary	11054324033
8	Octal	423203465
10	Decimal	72156981
12	Duodecimal	201b9619
16	Hexadecimal	44d0735
20	Vigesimal	12ajc91
36	Base36	16ykol

Cryptographic Hash Functions

md5	4127f8815100f1c471c2ef97b01dfa6b
sha1	cf68be3508700351d072a211b3da8a47f4ff0c45
sha256	b790034b7e2fdc08f22c1c73ede1d01accff6ebbcdaa9dfa3d72ad7efdb45204
sha512	6d25132cb93a01c673bd1bf52a65636e0f8de9b123f4e42d2f38a35fa42f2fbad8fb0ff1b472fb22f80de8cb07854ebb018dec179d61a26f35474657e7f4514a
ripemd-160	1e25f2321bf6286680216cc60e73b28f5ed0d418

72156981 as geometric shapes

Circle

Radius = n

Diameter	144313962
Circumference	453375682.82964
Area	1.63571102659E+16

Sphere

Radius = n

Volume	1.5737062595619E+24
Surface area	6.54284410636E+16
Circumference	453375682.82964

Square

Length = n

Perimeter	288627924
Area	5206629907034361
Diagonal	102045381.1501

Cube

Length = n

Surface area	31239779442206166
Volume	3.7569469527591E+23
Space diagonal	124979557.21278

Equilateral Triangle

Length = n

Perimeter	216470943
Area	2.2545368837978E+15
Altitude	62489778.606391

Triangular Pyramid

Length = n

Surface area	2.2545368837978E+15
Volume	4.4276044447568E+22
Height	34015127.050033