21028131 (number)

21028131 is an odd 8-digits composite number following 21028130 and preceding 21028132. In scientific notation, it is written as 2.1028131 × 10^7. The sum of its digits is 18. It has a total of 5 prime factors and 18 positive divisors. There are 13711896 positive integers (up to 21028131) that are relatively prime to 21028131.

Interesting facts

Basic properties

Name

Name twenty-one million twenty-eight thousand one hundred thirty-one

Notation

Scientific notation 2.1028131 × 10^7
Engineering notation 2.1028131 × 10^6

Prime Factorization of 21028131

Prime Factorization 3 × 3 × 59 × 199 × 199

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 35223
Product of the distinct prime numbers

The prime factorization of 21028131 is 3 × 3 × 59 × 199 × 199. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 9, 53, 87, 471, 71, 5123, 9520, 72812, 185, 917020, 434598, 169750, 6682992, 84734546, 80114670, 723519871, 428158266, 8281837525, 276848927

Basic calculations (n = 21028131)

Multiplication

n×y
n×2 42056262
n×3 63084393
n×4 84112524
n×5 105140655

Division

n÷y
n÷2 10514065.5
n÷3 7009377
n÷3 5257032.75
n÷5 4205626.2

Exponentiation

ny
n2 442182293353161
n3 9.2982671905107E+21
n4 1.9552518055506E+29
n5 4.1115291105105E+36

Nth Root

y√n
2√n 4585.6440114776
3√n 276.01555520396
4√n 67.717383377369
5√n 29.144736607353

Divisors of 21028131

1, 3, 9, 59, 177, 199, 531, 597, 1791, 11741, 35223, 39601, 105669, 118803, 356409, 2336459, 7009377, 21028131

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21028130
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21028131 can be divided by 18 positive divisors. The sum of these divisors (counting 21028131) is 1, the average is 0.055555555555556.

Base conversion 21028131

Base System Value
2 Binary 1010000001101110100100011
3 Ternary 1110120100011200
4 Quaternary 1100031310203
5 Quinary 20340400011
6 Senary 2030412243
8 Octal 120156443
10 Decimal 21028131
12 Duodecimal 7061083
16 Hexadecimal 140dd23
20 Vigesimal 6b8a6b
36 Base36 ciper

Cryptographic Hash Functions

md5 773cd3aae835c73cd0de81d4ed2a613d
sha1 3a70e505d3043a9219ecd9a3c583d3341812d411
sha256 78d62a3ac79b199549ba53c413aba084e527ac767eedb75c1fbc9a489bc1b16d
sha512 a8f4539f783540452b6e21a239ba2f90e0d8b12306e05787298b698b4ed3b1d7df29d06a45524ab03d589fe27367eac8f64be8df3f667f47a4ad4cf864990cea
ripemd-160 32faf61a84dc18bb5ecc18c545483f5b76e29f8a

21028131 as geometric shapes

Circle

Radius = n
Diameter 42056262
Circumference 132123643.73665
Area 1.3891566443458E+15

Sphere

Radius = n
Volume 3.8948490529098E+22
Surface area 5.5566265773831E+15
Circumference 132123643.73665

Square

Length = n
Perimeter 84112524
Area 442182293353161
Diagonal 29738268.051558

Cube

Length = n
Surface area 2653093760118966
Volume 9.2982671905107E+21
Space diagonal 36421791.280214

Equilateral Triangle

Length = n
Perimeter 63084393
Area 1.9147054957375E+14
Altitude 18210895.640107

Triangular Pyramid

Length = n
Surface area 1.9147054957375E+14
Volume 1.0958112972824E+21
Height 9912756.017186