21031397 (number)

21031397 is an odd 8-digits composite number following 21031396 and preceding 21031398. In scientific notation, it is written as 2.1031397 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors. There are 19453440 positive integers (up to 21031397) that are relatively prime to 21031397.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand three hundred ninety-seven

Notation

Scientific notation 2.1031397 × 10^7
Engineering notation 2.1031397 × 10^6

Prime Factorization of 21031397

Prime Factorization 17 × 17 × 61 × 1193

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1237141
Product of the distinct prime numbers

The prime factorization of 21031397 is 17 × 17 × 61 × 1193. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 1, 8, 16, 626, 943, 7256, 1519, 68137, 38784, 175727, 505099, 8609770, 5464274, 337339, 74792478, 147381873, 226361164, 3608217569, 2230044286

Basic calculations (n = 21031397)

Multiplication

n×y
n×2 42062794
n×3 63094191
n×4 84125588
n×5 105156985

Division

n÷y
n÷2 10515698.5
n÷3 7010465.6666667
n÷3 5257849.25
n÷5 4206279.4

Exponentiation

ny
n2 442319659771609
n3 9.3026003655616E+21
n4 1.9564668142047E+29
n5 4.1147230286865E+36

Nth Root

y√n
2√n 4586.0001090275
3√n 276.0298443188
4√n 67.720012618335
5√n 29.145641878455

Divisors of 21031397

1, 17, 61, 289, 1037, 1193, 17629, 20281, 72773, 344777, 1237141, 21031397

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 -21031396
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 21031397 can be divided by 12 positive divisors. The sum of these divisors (counting 21031397) is 1, the average is 0.083333333333333.

Base conversion 21031397

Base System Value
2 Binary 1010000001110100111100101
3 Ternary 1110120111122122
4 Quaternary 1100032213211
5 Quinary 20341001042
6 Senary 2030435325
8 Octal 120164745
10 Decimal 21031397
12 Duodecimal 7062b45
16 Hexadecimal 140e9e5
20 Vigesimal 6b8i9h
36 Base36 cirxh

Cryptographic Hash Functions

md5 0df78a9179650d6e96a19b78fba0cd15
sha1 10a86877c432bfc35b9b112fc2167985630f6c2e
sha256 3eb9d25e85827e13761fe67ef891cee1ab4751464e51b247184a50e6da02c943
sha512 d0d2b617b79bc400850b069275633cd487d56b19ffb693bbee3dda9010f7de1808f68559a6e72f5b210a100db15a89b69d7d7db1aefe1dd2f10e8ee0057eeac3
ripemd-160 e15384d53b27f9abfd91b44d5124f65ac6aa823b

21031397 as geometric shapes

Circle

Radius = n
Diameter 42062794
Circumference 132144164.61986
Area 1.3895881936768E+15

Sphere

Radius = n
Volume 3.8966641290307E+22
Surface area 5.5583527747073E+15
Circumference 132144164.61986

Square

Length = n
Perimeter 84125588
Area 442319659771609
Diagonal 29742886.873053

Cube

Length = n
Surface area 2653917958629654
Volume 9.3026003655616E+21
Space diagonal 36427448.158152

Equilateral Triangle

Length = n
Perimeter 63094191
Area 1.9153003097775E+14
Altitude 18213724.079076

Triangular Pyramid

Length = n
Surface area 1.9153003097775E+14
Volume 1.0963219668595E+21
Height 9914295.6243509