157020821 (number)

157020821 is an odd 9-digits composite number following 157020820 and preceding 157020822. In scientific notation, it is written as 1.57020821 × 10^8. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 150473232 positive integers (up to 157020821) that are relatively prime to 157020821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.57020821 × 10^8
Engineering notation 1.57020821 × 10^6

Prime Factorization of 157020821

Prime Factorization 53 × 43 × 68899

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 157020821
Product of the distinct prime numbers

The prime factorization of 157020821 is 53 × 43 × 68899. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 6, 69, 35, 392, 736, 1639, 4329, 98482, 50100, 194140, 749850, 5654770, 9900795, 29300711, 99842158, 144590403, 224517429, 9016724059, 9484726834

Basic calculations (n = 157020821)

Multiplication

n×y
n×2 314041642
n×3 471062463
n×4 628083284
n×5 785104105

Division

n÷y
n÷2 78510410.5
n÷3 52340273.666667
n÷3 39255205.25
n÷5 31404164.2

Exponentiation

ny
n2 24655538227514041
n3 3.8714328546811E+24
n4 6.0789556528841E+32
n5 9.5452260743845E+40

Nth Root

y√n
2√n 12530.794906948
3√n 539.49291789681
4√n 111.94103316902
5√n 43.570390142404

Divisors of 157020821

1, 43, 53, 2279, 68899, 2962657, 3651647, 157020821

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 -157020820
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 157020821 can be divided by 8 positive divisors. The sum of these divisors (counting 157020821) is 1, the average is 0.125.

Base conversion 157020821

Base System Value
2 Binary 1001010110111111001010010101
3 Ternary 101221110111001222
4 Quaternary 21112333022111
5 Quinary 310144131241
6 Senary 23325300125
8 Octal 1126771225
10 Decimal 157020821
12 Duodecimal 44704645
16 Hexadecimal 95bf295
20 Vigesimal 2917c11
36 Base36 2lhi1h

Cryptographic Hash Functions

md5 0c5d2ea1641c5e639dad09af2bd1dd68
sha1 472d2a36d7388b31f8b7a05bd5927de69c2e4c02
sha256 96a7a164c0005d5e21f61ac097edfcf5dc3ef9ea9fae4812e9501167d85b852f
sha512 9490f174ce55f4b247a13ddb59e4cf83f7907e3c07da612f7453ac27a65d83641ebe056140d187603dacd6caede39798e906b5b93bf9a0b299bc17337a2d7822
ripemd-160 057263d8eb33dbf3339202187ab0e3830d2403d8

157020821 as geometric shapes

Circle

Radius = n
Diameter 314041642
Circumference 986590915.42848
Area 7.745765776586E+16

Sphere

Radius = n
Volume 1.6216620020177E+25
Surface area 3.0983063106344E+17
Circumference 986590915.42848

Square

Length = n
Perimeter 628083284
Area 24655538227514041
Diagonal 222060974.63316

Cube

Length = n
Surface area 147933229365084246
Volume 3.8714328546811E+24
Space diagonal 271968039.81818

Equilateral Triangle

Length = n
Perimeter 471062463
Area 1.0676161224503E+16
Altitude 135984019.90909

Triangular Pyramid

Length = n
Surface area 1.0676161224503E+16
Volume 4.562527374089E+23
Height 74020324.877719