20151381 (number)

20151381 is an odd 8-digits composite number following 20151380 and preceding 20151382. In scientific notation, it is written as 2.0151381 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 12158784 positive integers (up to 20151381) that are relatively prime to 20151381.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifty-one thousand three hundred eighty-one

Notation

Scientific notation 2.0151381 × 10^7
Engineering notation 2.0151381 × 10^6

Prime Factorization of 20151381

Prime Factorization 3 × 437 × 19 × 809

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20151381
Product of the distinct prime numbers

The prime factorization of 20151381 is 3 × 437 × 19 × 809. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 89, 37, 576, 105, 6801, 2859, 51542, 87991, 126711, 981795, 3726642, 9451024, 70881883, 83226566, 359597063, 196308411, 202512641, 1522188155

Basic calculations (n = 20151381)

Multiplication

n×y
n×2 40302762
n×3 60454143
n×4 80605524
n×5 100756905

Division

n÷y
n÷2 10075690.5
n÷3 6717127
n÷3 5037845.25
n÷5 4030276.2

Exponentiation

ny
n2 406078156207161
n3 8.183035641508E+21
n4 1.6489946894861E+29
n5 3.3229520254811E+36

Nth Root

y√n
2√n 4489.0289595858
3√n 272.12489308433
4√n 67.000216115963
5√n 28.897545941613

Divisors of 20151381

1, 3, 19, 57, 437, 809, 1311, 2427, 8303, 15371, 24909, 46113, 353533, 1060599, 6717127, 20151381

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 -20151380
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 20151381 can be divided by 16 positive divisors. The sum of these divisors (counting 20151381) is 1, the average is 0.0625.

Base conversion 20151381

Base System Value
2 Binary 1001100110111110001010101
3 Ternary 1101220210111110
4 Quaternary 1030313301111
5 Quinary 20124321011
6 Senary 1555525233
8 Octal 114676125
10 Decimal 20151381
12 Duodecimal 68b9819
16 Hexadecimal 1337c55
20 Vigesimal 65ii91
36 Base36 bzwwl

Cryptographic Hash Functions

md5 72354c73f7a1b4a0a9e4ff40ee691231
sha1 ef2ae70a9417f76a0e723d90b032b275d8cd7135
sha256 ed161d9a51eeedbf6c3c7ca8b6d9447befd37ab5f8fd5a9ba143d9c597ae5abf
sha512 e0aced6ba489c7815a777b9980824295bdef75ee3292c4b3f58ac752f3eca9d4fc57351c3fb46de778e98059998db0dca9fc81e973e3fc5c6b60fbc896f73933
ripemd-160 2e57dc7b03f930e9294fe22ec5a79a4b74843239

20151381 as geometric shapes

Circle

Radius = n
Diameter 40302762
Circumference 126614861.01858
Area 1.2757321523237E+15

Sphere

Radius = n
Volume 3.4277019540567E+22
Surface area 5.1029286092948E+15
Circumference 126614861.01858

Square

Length = n
Perimeter 80605524
Area 406078156207161
Diagonal 28498356.310748

Cube

Length = n
Surface area 2436468937242966
Volume 8.183035641508E+21
Space diagonal 34903215.734678

Equilateral Triangle

Length = n
Perimeter 60454143
Area 1.7583699959867E+14
Altitude 17451607.867339

Triangular Pyramid

Length = n
Surface area 1.7583699959867E+14
Volume 9.6437999880025E+20
Height 9499452.1035825