72156721 (number)

72156721 is an odd 8-digits composite number following 72156720 and preceding 72156722. In scientific notation, it is written as 7.2156721 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 53731584 positive integers (up to 72156721) that are relatively prime to 72156721.

Interesting facts

Basic properties

Name

Name seventy-two million one hundred fifty-six thousand seven hundred twenty-one

Notation

Scientific notation 7.2156721 × 10^7
Engineering notation 7.2156721 × 10^6

Prime Factorization of 72156721

Prime Factorization 7 × 13 × 17 × 46643

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 72156721
Product of the distinct prime numbers

The prime factorization of 72156721 is 7 × 13 × 17 × 46643. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 72156721)

Multiplication

n×y
n×2 144313442
n×3 216470163
n×4 288626884
n×5 360783605

Division

n÷y
n÷2 36078360.5
n÷3 24052240.333333
n÷3 18039180.25
n÷5 14431344.2

Exponentiation

ny
n2 5206592385471841
n3 3.7569063411922E+23
n4 2.7108604268453E+31
n5 1.9560679948982E+39

Nth Root

y√n
2√n 8494.5112278459
3√n 416.31839106875
4√n 92.165672719543
5√n 37.295407599008

Divisors of 72156721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -72156720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72156721 can be divided by 16 positive divisors. The sum of these divisors (counting 72156721) is 1, the average is 0.0625.

Base conversion 72156721

Base System Value
2 Binary 100010011010000011000110001
3 Ternary 12000202221102011
4 Quaternary 10103100120301
5 Quinary 121433003341
6 Senary 11054322521
8 Octal 423203061
10 Decimal 72156721
12 Duodecimal 201b9441
16 Hexadecimal 44d0631
20 Vigesimal 12ajbg1
36 Base36 16ykhd

Cryptographic Hash Functions

md5 868f135b497971cd5961059e0b2d3e0e
sha1 2fb161fc68002a32b2401715c93212d3c4257c80
sha256 48aa82726ec7a777823eac2c174c4acba913eed990cc730cfc7339a3dc5622b5
sha512 ecc189934aa7668168af3db80d02d0c393557ff5abe329b2c6cf746b0123bbf38e28046e6397325093a5c2f48178cf9be8080a2cdac691cb399f738ce2c0e6f2
ripemd-160 d50d19525d1ac41f6dacda9fbf68fd61766d35ea

72156721 as geometric shapes

Circle

Radius = n
Diameter 144313442
Circumference 453374049.20146
Area 1.6356992388435E+16

Sphere

Radius = n
Volume 1.5736892482286E+24
Surface area 6.542796955374E+16
Circumference 453374049.20146

Square

Length = n
Perimeter 288626884
Area 5206592385471841
Diagonal 102045013.45457

Cube

Length = n
Surface area 31239554312831046
Volume 3.7569063411922E+23
Space diagonal 124979106.87957

Equilateral Triangle

Length = n
Perimeter 216470163
Area 2.2545206364846E+15
Altitude 62489553.439786

Triangular Pyramid

Length = n
Surface area 2.2545206364846E+15
Volume 4.4275565835662E+22
Height 34015004.484857