21232981 (number)

21232981 is an odd 8-digits composite number following 21232980 and preceding 21232982. In scientific notation, it is written as 2.1232981 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 16473600 positive integers (up to 21232981) that are relatively prime to 21232981.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred thirty-two thousand nine hundred eighty-one

Notation

Scientific notation 2.1232981 × 10^7
Engineering notation 2.1232981 × 10^6

Prime Factorization of 21232981

Prime Factorization 11 × 7 × 313 × 881

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21232981
Product of the distinct prime numbers

The prime factorization of 21232981 is 11 × 7 × 313 × 881. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 91, 28, 302, 533, 5117, 240, 92182, 43614, 246252, 588176, 7867738, 7243782, 30884275, 52477931, 740380565, 239298720, 3516235563, 6595621975

Basic calculations (n = 21232981)

Multiplication

n×y
n×2 42465962
n×3 63698943
n×4 84931924
n×5 106164905

Division

n÷y
n÷2 10616490.5
n÷3 7077660.3333333
n÷3 5308245.25
n÷5 4246596.2

Exponentiation

ny
n2 450839482146361
n3 9.5726661584635E+21
n4 2.03256238662E+29
n5 4.3157358536417E+36

Nth Root

y√n
2√n 4607.925889161
3√n 276.90894842646
4√n 67.88170511383
5√n 29.201300550002

Divisors of 21232981

1, 7, 11, 77, 313, 881, 2191, 3443, 6167, 9691, 24101, 67837, 275753, 1930271, 3033283, 21232981

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 -21232980
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 21232981 can be divided by 16 positive divisors. The sum of these divisors (counting 21232981) is 1, the average is 0.0625.

Base conversion 21232981

Base System Value
2 Binary 1010000111111110101010101
3 Ternary 1110221202011201
4 Quaternary 1100333311111
5 Quinary 20413423411
6 Senary 2035032501
8 Octal 120776525
10 Decimal 21232981
12 Duodecimal 713b731
16 Hexadecimal 143fd55
20 Vigesimal 6ce291
36 Base36 cn3h1

Cryptographic Hash Functions

md5 ef0c6326dd9e9cb535239487fa452d26
sha1 afc9e04d210f5e249706838fc9b236a36a2c5fb9
sha256 e6a7c6c324dfb761297043070d26f9436f049c0439181db772d359fe47a46a2a
sha512 b32cdac96d8322698af42efd6f8f776c306517669b5f3becaf787b0d117f5e7a7b336045b31172ce9f9beb9598e16a789aac9ab0b34453bc8f3ac7d7a99e1ddc
ripemd-160 b2a3f5a9df9b6a0e8bea69b6d4a74faab2666100

21232981 as geometric shapes

Circle

Radius = n
Diameter 42465962
Circumference 133410754.24682
Area 1.4163540050592E+15

Sphere

Radius = n
Volume 4.0097890238262E+22
Surface area 5.6654160202369E+15
Circumference 133410754.24682

Square

Length = n
Perimeter 84931924
Area 450839482146361
Diagonal 30027969.69981

Cube

Length = n
Surface area 2705036892878166
Volume 9.5726661584635E+21
Space diagonal 36776601.888145

Equilateral Triangle

Length = n
Perimeter 63698943
Area 1.9521922228388E+14
Altitude 18388300.944072

Triangular Pyramid

Length = n
Surface area 1.9521922228388E+14
Volume 1.1281495257808E+21
Height 10009323.23327