21531631 (number)

21531631 is an odd 8-digits composite number following 21531630 and preceding 21531632. In scientific notation, it is written as 2.1531631 × 10^7. The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors. There are 19485720 positive integers (up to 21531631) that are relatively prime to 21531631.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-one thousand six hundred thirty-one

Notation

Scientific notation 2.1531631 × 10^7
Engineering notation 2.1531631 × 10^6

Prime Factorization of 21531631

Prime Factorization 11 × 227 × 8623

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21531631
Product of the distinct prime numbers

The prime factorization of 21531631 is 11 × 227 × 8623. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21531631)

Multiplication

n×y
n×2 43063262
n×3 64594893
n×4 86126524
n×5 107658155

Division

n÷y
n÷2 10765815.5
n÷3 7177210.3333333
n÷3 5382907.75
n÷5 4306326.2

Exponentiation

ny
n2 463611133520161
n3 9.9823038544478E+21
n4 2.1493528312385E+29
n5 4.6279072051032E+36

Nth Root

y√n
2√n 4640.2188525974
3√n 278.20118539085
4√n 68.119151878142
5√n 29.282987741714

Divisors of 21531631

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 -21531630
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 21531631 can be divided by 8 positive divisors. The sum of these divisors (counting 21531631) is 1, the average is 0.125.

Base conversion 21531631

Base System Value
2 Binary 1010010001000101111101111
3 Ternary 1111111220211211
4 Quaternary 1102020233233
5 Quinary 21003003011
6 Senary 2045255251
8 Octal 122105757
10 Decimal 21531631
12 Duodecimal 7264527
16 Hexadecimal 1488bef
20 Vigesimal 6eb91b
36 Base36 cthwv

Cryptographic Hash Functions

md5 af9dd152be8d4028f303c93620177f77
sha1 db403a145724ceb4d5a58351f8e18cb1c6219792
sha256 feb8413e248ef7699acae79f4a760481e41ba335683ef2e4bec40849403a6f7d
sha512 f547216348c67527b1ee2cd2cc051b1071efb02913d1e61d4814169b80194edd3f4f53ec838b39fbcc591d5bf56e7582e98164b7f35035d65935bee71c8497f7
ripemd-160 9b9bac869ee87518d90c89f52632d9e964912ac7

21531631 as geometric shapes

Circle

Radius = n
Diameter 43063262
Circumference 135287227.53881
Area 1.4564773311894E+15

Sphere

Radius = n
Volume 4.1813776606713E+22
Surface area 5.8259093247575E+15
Circumference 135287227.53881

Square

Length = n
Perimeter 86126524
Area 463611133520161
Diagonal 30450324.580213

Cube

Length = n
Surface area 2781666801120966
Volume 9.9823038544478E+21
Space diagonal 37293878.861825

Equilateral Triangle

Length = n
Perimeter 64594893
Area 2.0074950955288E+14
Altitude 18646939.430913

Triangular Pyramid

Length = n
Surface area 2.0074950955288E+14
Volume 1.1764257912241E+21
Height 10150108.193404