21490947 (number)

21490947 is an odd 8-digits composite number following 21490946 and preceding 21490948. In scientific notation, it is written as 2.1490947 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 13703976 positive integers (up to 21490947) that are relatively prime to 21490947.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand nine hundred forty-seven

Notation

Scientific notation 2.1490947 × 10^7
Engineering notation 2.1490947 × 10^6

Prime Factorization of 21490947

Prime Factorization 9 × 3 × 23 × 34607

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21490947
Product of the distinct prime numbers

The prime factorization of 21490947 is 9 × 3 × 23 × 34607. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 17, 69, 97, 42, 7802, 7216, 13932, 33626, 665010, 910450, 614848, 7906261, 38246763, 76819080, 510465906, 971645038, 4773332881, 4628120977

Basic calculations (n = 21490947)

Multiplication

n×y
n×2 42981894
n×3 64472841
n×4 85963788
n×5 107454735

Division

n÷y
n÷2 10745473.5
n÷3 7163649
n÷3 5372736.75
n÷5 4298189.4

Exponentiation

ny
n2 461860802956809
n3 9.9258260377222E+21
n4 2.1331540130791E+29
n5 4.584349983792E+36

Nth Root

y√n
2√n 4635.8329348673
3√n 278.02585460762
4√n 68.086951281925
5√n 29.271913332007

Divisors of 21490947

1, 3, 9, 23, 27, 69, 207, 621, 34607, 103821, 311463, 795961, 934389, 2387883, 7163649, 21490947

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 -21490946
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 21490947 can be divided by 16 positive divisors. The sum of these divisors (counting 21490947) is 1, the average is 0.0625.

Base conversion 21490947

Base System Value
2 Binary 1010001111110110100000011
3 Ternary 1111102212001000
4 Quaternary 1101332310003
5 Quinary 21000202242
6 Senary 2044343043
8 Octal 121766403
10 Decimal 21490947
12 Duodecimal 7244a83
16 Hexadecimal 147ed03
20 Vigesimal 6e6777
36 Base36 csmir

Cryptographic Hash Functions

md5 5d69df32393ea0522eac2607b1d738fd
sha1 20cb9d021e2de9ef22858d2a147b5a5c8a26abab
sha256 295d6537da6ff95d4467b40e2f1f6b4ebc47b538505cdfcfbed70ba061582410
sha512 05f5d1a4dfb1654071bb663b193112c908ee9b341077c665dadcc0027361349d676d8f87734b639ec75562493d61207eb089ff342091947d8e91579cf0f0af33
ripemd-160 17d9efd3a760f9a206d4c26cef004d779ca854bf

21490947 as geometric shapes

Circle

Radius = n
Diameter 42981894
Circumference 135031602.42778
Area 1.4509785055502E+15

Sphere

Radius = n
Volume 4.1577202881225E+22
Surface area 5.8039140222008E+15
Circumference 135031602.42778

Square

Length = n
Perimeter 85963788
Area 461860802956809
Diagonal 30392788.715641

Cube

Length = n
Surface area 2771164817740854
Volume 9.9258260377222E+21
Space diagonal 37223412.10677

Equilateral Triangle

Length = n
Perimeter 64472841
Area 1.9999159418644E+14
Altitude 18611706.053385

Triangular Pyramid

Length = n
Surface area 1.9999159418644E+14
Volume 1.1697698166919E+21
Height 10130929.57188