15721968 (number)

15721968 is an even 8-digits composite number following 15721967 and preceding 15721969. In scientific notation, it is written as 1.5721968 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 20 positive divisors. There are 4964544 positive integers (up to 15721968) that are relatively prime to 15721968.

Interesting facts

Basic properties

Name

Name fifteen million seven hundred twenty-one thousand nine hundred sixty-eight

Notation

Scientific notation 1.5721968 × 10^7
Engineering notation 1.5721968 × 10^6

Prime Factorization of 15721968

Prime Factorization 2 × 2 × 2 × 2 × 57 × 17239

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1965246
Product of the distinct prime numbers

The prime factorization of 15721968 is 2 × 2 × 2 × 2 × 57 × 17239. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 2, 3, 98, 846, 297, 9391, 8003, 60196, 85565, 952076, 235161, 103532, 7951140, 41870353, 9202722, 876431740, 126493668, 840950943, 3106074871

Basic calculations (n = 15721968)

Multiplication

n×y
n×2 31443936
n×3 47165904
n×4 62887872
n×5 78609840

Division

n÷y
n÷2 7860984
n÷3 5240656
n÷3 3930492
n÷5 3144393.6

Exponentiation

ny
n2 247180277793024
n3 3.886160417693E+21
n4 6.1098089729837E+28
n5 9.6058221159362E+35

Nth Root

y√n
2√n 3965.0936937228
3√n 250.51609651108
4√n 62.968989937292
5√n 27.498017346811

Divisors of 15721968

1, 2, 4, 8, 16, 57, 114, 228, 456, 912, 17239, 34478, 68956, 137912, 275824, 982623, 1965246, 3930492, 7860984, 15721968

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15721967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15721968 can be divided by 20 positive divisors. The sum of these divisors (counting 15721968) is 1, the average is 0.05.

Base conversion 15721968

Base System Value
2 Binary 111011111110010111110000
3 Ternary 1002120202111010
4 Quaternary 323332113300
5 Quinary 13011100333
6 Senary 1320550520
8 Octal 73762760
10 Decimal 15721968
12 Duodecimal 5322440
16 Hexadecimal efe5f0
20 Vigesimal 4i54i8
36 Base36 9cz5c

Cryptographic Hash Functions

md5 65c2d91892a9c5b3bb577a14026b6326
sha1 fa390bc8eb7b2e825f4bd3856c6e7df3b64199e0
sha256 1f0d136abbaf14b4acdccfa174c470f2b8819b7f9711691ead95ba599863a137
sha512 f8620ad97cc5ad08fa7d3e15cd99d954429dd8caccd4cd948b9e0c8421587952ef7e5331889609f152ed809d71a07ab49dbf950766e63fbcd0d665ff5b8c839b
ripemd-160 fb4a9c9460e2616c258f661f3e3a69b9566db2d5

15721968 as geometric shapes

Circle

Radius = n
Diameter 31443936
Circumference 98784038.337548
Area 7.7653974482685E+14

Sphere

Radius = n
Volume 1.6278310691861E+22
Surface area 3.1061589793074E+15
Circumference 98784038.337548

Square

Length = n
Perimeter 62887872
Area 247180277793024
Diagonal 22234220.372796

Cube

Length = n
Surface area 1483081666758144
Volume 3.886160417693E+21
Space diagonal 27231247.370972

Equilateral Triangle

Length = n
Perimeter 47165904
Area 1.0703219994163E+14
Altitude 13615623.685486

Triangular Pyramid

Length = n
Surface area 1.0703219994163E+14
Volume 4.5798839735492E+20
Height 7411406.7909319