21553989 (number)

21553989 is an odd 8-digits composite number following 21553988 and preceding 21553990. In scientific notation, it is written as 2.1553989 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 12 positive divisors. There are 13872208 positive integers (up to 21553989) that are relatively prime to 21553989.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred fifty-three thousand nine hundred eighty-nine

Notation

Scientific notation 2.1553989 × 10^7
Engineering notation 2.1553989 × 10^6

Prime Factorization of 21553989

Prime Factorization 3 × 29 × 29 × 8543

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 743241
Product of the distinct prime numbers

The prime factorization of 21553989 is 3 × 29 × 29 × 8543. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 86, 98, 12, 900, 37, 9735, 58890, 7098, 920111, 798955, 9676243, 6587368, 12807865, 80109930, 591010060, 547161565, 1038628460, 7399417264

Basic calculations (n = 21553989)

Multiplication

n×y
n×2 43107978
n×3 64661967
n×4 86215956
n×5 107769945

Division

n÷y
n÷2 10776994.5
n÷3 7184663
n÷3 5388497.25
n÷5 4310797.8

Exponentiation

ny
n2 464574441812121
n3 1.00134324085E+22
n4 2.1582941198504E+29
n5 4.6519847718021E+36

Nth Root

y√n
2√n 4642.6273811281
3√n 278.29744486495
4√n 68.136828375909
5√n 29.289066587062

Divisors of 21553989

1, 3, 29, 87, 841, 2523, 8543, 25629, 247747, 743241, 7184663, 21553989

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 -21553988
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 21553989 can be divided by 12 positive divisors. The sum of these divisors (counting 21553989) is 1, the average is 0.083333333333333.

Base conversion 21553989

Base System Value
2 Binary 1010010001110001101000101
3 Ternary 1111120001111220
4 Quaternary 1102032031011
5 Quinary 21004211424
6 Senary 2045550553
8 Octal 122161505
10 Decimal 21553989
12 Duodecimal 7275459
16 Hexadecimal 148e345
20 Vigesimal 6ee4j9
36 Base36 ctz5x

Cryptographic Hash Functions

md5 fc5b97f509c28c66f349c5e6fa731601
sha1 5ed303100dcb92a00e956bdebec01a28913b40c0
sha256 a28a51a0a80088f0619fbeade32eb860ba02b0cecb1e8f028cfb4383c12d0444
sha512 e610cfaa37f59a71db30ed0e89299a2243f6ab917851099f720caee2aefcb3d87e73087275c16f514a5aecbbf5480ee5c7f85fd36629e3e33aabe8562f6b5b52
ripemd-160 f938b78aef0fa00113cce2827c273ec99477df57

21553989 as geometric shapes

Circle

Radius = n
Diameter 43107978
Circumference 135427706.99591
Area 1.4595036534425E+15

Sphere

Radius = n
Volume 4.1944167589014E+22
Surface area 5.8380146137702E+15
Circumference 135427706.99591

Square

Length = n
Perimeter 86215956
Area 464574441812121
Diagonal 30481943.567041

Cube

Length = n
Surface area 2787446650872726
Volume 1.00134324085E+22
Space diagonal 37332604.053781

Equilateral Triangle

Length = n
Perimeter 64661967
Area 2.0116663427914E+14
Altitude 18666302.02689

Triangular Pyramid

Length = n
Surface area 2.0116663427914E+14
Volume 1.1800943265005E+21
Height 10160647.85568