21031081 (number)

21031081 is an odd 8-digits composite number following 21031080 and preceding 21031082. In scientific notation, it is written as 2.1031081 × 10^7. The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors. There are 19243008 positive integers (up to 21031081) that are relatively prime to 21031081.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand eighty-one

Notation

Scientific notation 2.1031081 × 10^7
Engineering notation 2.1031081 × 10^6

Prime Factorization of 21031081

Prime Factorization 59 × 19 × 73 × 257

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031081
Product of the distinct prime numbers

The prime factorization of 21031081 is 59 × 19 × 73 × 257. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 5, 78, 649, 946, 6674, 2928, 56655, 820, 625401, 606853, 105475, 7874565, 60767172, 90519942, 332079539, 425975232, 3219123692, 2468230089

Basic calculations (n = 21031081)

Multiplication

n×y
n×2 42062162
n×3 63093243
n×4 84124324
n×5 105155405

Division

n÷y
n÷2 10515540.5
n÷3 7010360.3333333
n÷3 5257770.25
n÷5 4206216.2

Exponentiation

ny
n2 442306368028561
n3 9.3021810528245E+21
n4 1.9563492319862E+29
n5 4.1144139162189E+36

Nth Root

y√n
2√n 4585.9656562168
3√n 276.02846184815
4√n 67.71975824098
5√n 29.145554294372

Divisors of 21031081

1, 19, 59, 73, 257, 1121, 1387, 4307, 4883, 15163, 18761, 81833, 288097, 356459, 1106899, 21031081

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 -21031080
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 21031081 can be divided by 16 positive divisors. The sum of these divisors (counting 21031081) is 1, the average is 0.0625.

Base conversion 21031081

Base System Value
2 Binary 1010000001110100010101001
3 Ternary 1110120111012221
4 Quaternary 1100032202221
5 Quinary 20340443311
6 Senary 2030434041
8 Octal 120164251
10 Decimal 21031081
12 Duodecimal 7062921
16 Hexadecimal 140e8a9
20 Vigesimal 6b8he1
36 Base36 cirop

Cryptographic Hash Functions

md5 a27cd6e7c1a3d4d0eab1b03cd1a7e6fd
sha1 554aaae0ec6f1437185cb74b277cf8b36c1b3c49
sha256 c494fcb3b0d55d85276d2073b59bd3b54622e174836c9939de6c0d58b6719d29
sha512 bddb1e67842d986c7ddc053e80cf04f31c5e8923fe47a771e440a6476843a965bbe0428cb2872b0f15bcb1f932d437e25b6ee9e6967d23ba78af4e6c0d70b747
ripemd-160 8636523bef06703272668c2f6c7b0555e40f02cb

21031081 as geometric shapes

Circle

Radius = n
Diameter 42062162
Circumference 132142179.1333
Area 1.3895464364345E+15

Sphere

Radius = n
Volume 3.8964884877221E+22
Surface area 5.558185745738E+15
Circumference 132142179.1333

Square

Length = n
Perimeter 84124324
Area 442306368028561
Diagonal 29742439.981567

Cube

Length = n
Surface area 2653838208171366
Volume 9.3021810528245E+21
Space diagonal 36426900.830096

Equilateral Triangle

Length = n
Perimeter 63093243
Area 1.9152427548418E+14
Altitude 18213450.415048

Triangular Pyramid

Length = n
Surface area 1.9152427548418E+14
Volume 1.0962725503795E+21
Height 9914146.6605224