20921157 (number)

20921157 is an odd 8-digits composite number following 20921156 and preceding 20921158. In scientific notation, it is written as 2.0921157 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 13650408 positive integers (up to 20921157) that are relatively prime to 20921157.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand one hundred fifty-seven

Notation

Scientific notation 2.0921157 × 10^7
Engineering notation 2.0921157 × 10^6

Prime Factorization of 20921157

Prime Factorization 3 × 3 × 47 × 49459

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 6973719
Product of the distinct prime numbers

The prime factorization of 20921157 is 3 × 3 × 47 × 49459. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 5, 31, 74, 159, 252, 2860, 5049, 77398, 8615, 305875, 880245, 1653675, 8701519, 6318659, 61603209, 881231415, 275301093, 2196942164, 8914640703

Basic calculations (n = 20921157)

Multiplication

n×y
n×2 41842314
n×3 62763471
n×4 83684628
n×5 104605785

Division

n÷y
n÷2 10460578.5
n÷3 6973719
n÷3 5230289.25
n÷5 4184231.4

Exponentiation

ny
n2 437694810218649
n3 9.1570818426696E+21
n4 1.9157674689234E+29
n5 4.0080071992839E+36

Nth Root

y√n
2√n 4573.965128857
3√n 275.54671184209
4√n 67.631095872069
5√n 29.115023147096

Divisors of 20921157

1, 3, 9, 47, 141, 423, 49459, 148377, 445131, 2324573, 6973719, 20921157

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 -20921156
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 20921157 can be divided by 12 positive divisors. The sum of these divisors (counting 20921157) is 1, the average is 0.083333333333333.

Base conversion 20921157

Base System Value
2 Binary 1001111110011101101000101
3 Ternary 1110100220102200
4 Quaternary 1033303231011
5 Quinary 20323434112
6 Senary 2024225113
8 Octal 117635505
10 Decimal 20921157
12 Duodecimal 700b199
16 Hexadecimal 13f3b45
20 Vigesimal 6af2hh
36 Base36 cgev9

Cryptographic Hash Functions

md5 179e93114c10cf592811e8ec6f206e0e
sha1 229265926f56228d69f4a69c850896a87fed4545
sha256 be82ad72eb4d34626269b89dc3738a1f91915f46bb9fb471d0b78eea121f0999
sha512 4ebfac9cdcf0a9180e06f0ec0fc4387524662ce8d1c4be2aa900ee69c62866323536747c0f29adc95f539aee8eeb3a577d599bbac7c12b2443c32dd4d5148fda
ripemd-160 faa29973e5ac79f5003ee20c0c9e8d0c78b4fc60

20921157 as geometric shapes

Circle

Radius = n
Diameter 41842314
Circumference 131451506.2716
Area 1.3750588002973E+15

Sphere

Radius = n
Volume 3.8357094727002E+22
Surface area 5.5002352011891E+15
Circumference 131451506.2716

Square

Length = n
Perimeter 83684628
Area 437694810218649
Diagonal 29586983.969937

Cube

Length = n
Surface area 2626168861311894
Volume 9.1570818426696E+21
Space diagonal 36236506.877125

Equilateral Triangle

Length = n
Perimeter 62763471
Area 1.8952741237698E+14
Altitude 18118253.438563

Triangular Pyramid

Length = n
Surface area 1.8952741237698E+14
Volume 1.079172444472E+21
Height 9862327.9899789