21031997 (number)

21031997 is an odd 8-digits composite number following 21031996 and preceding 21031998. In scientific notation, it is written as 2.1031997 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 17967600 positive integers (up to 21031997) that are relatively prime to 21031997.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1031997 × 10^7
Engineering notation 2.1031997 × 10^6

Prime Factorization of 21031997

Prime Factorization 7 × 311 × 9661

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21031997
Product of the distinct prime numbers

The prime factorization of 21031997 is 7 × 311 × 9661. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 7, 85, 89, 229, 196, 2762, 7259, 76545, 76271, 161164, 421043, 7757249, 6326962, 9953377, 89743162, 981522860, 377200222, 6129713372, 5694711092

Basic calculations (n = 21031997)

Multiplication

n×y
n×2 42063994
n×3 63095991
n×4 84127988
n×5 105159985

Division

n÷y
n÷2 10515998.5
n÷3 7010665.6666667
n÷3 5257999.25
n÷5 4206399.4

Exponentiation

ny
n2 442344897808009
n3 9.3033965636634E+21
n4 1.9566900861678E+29
n5 4.115310002221E+36

Nth Root

y√n
2√n 4586.0655250443
3√n 276.03246922498
4√n 67.720495605424
5√n 29.145808174452

Divisors of 21031997

1, 7, 311, 2177, 9661, 67627, 3004571, 21031997

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 -21031996
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 21031997 can be divided by 8 positive divisors. The sum of these divisors (counting 21031997) is 1, the average is 0.125.

Base conversion 21031997

Base System Value
2 Binary 1010000001110110000111101
3 Ternary 1110120112110212
4 Quaternary 1100032300331
5 Quinary 20341010442
6 Senary 2030442205
8 Octal 120166075
10 Decimal 21031997
12 Duodecimal 7063365
16 Hexadecimal 140ec3d
20 Vigesimal 6b8jjh
36 Base36 cise5

Cryptographic Hash Functions

md5 690953acc316b956e903311dbf5f186e
sha1 70481516b583deead7d64d38807e5faeaf2597f8
sha256 712241f03399c3164a82a1bb3680864e61be2e57d3feb532c98fd055c011baa3
sha512 c31db64fcb87ecfa990d7cabfdf15fe162d41e51c35b4ec3eb8598d41449c274a99f1df45ae040a7fee0cd102b1549a490e2167742bb49d9a433a38bbc1c0b58
ripemd-160 42f8c043c3eea9cfcdeaa5691b3c0cfd5407c81c

21031997 as geometric shapes

Circle

Radius = n
Diameter 42063994
Circumference 132147934.53105
Area 1.3896674813066E+15

Sphere

Radius = n
Volume 3.8969976397116E+22
Surface area 5.5586699252263E+15
Circumference 132147934.53105

Square

Length = n
Perimeter 84127988
Area 442344897808009
Diagonal 29743735.40119

Cube

Length = n
Surface area 2654069386848054
Volume 9.3033965636634E+21
Space diagonal 36428487.388636

Equilateral Triangle

Length = n
Perimeter 63095991
Area 1.9154095936808E+14
Altitude 18214243.694318

Triangular Pyramid

Length = n
Surface area 1.9154095936808E+14
Volume 1.0964157997057E+21
Height 9914578.4670634