21231457 (number)

21231457 is an odd 8-digits composite number following 21231456 and preceding 21231458. In scientific notation, it is written as 2.1231457 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 19095552 positive integers (up to 21231457) that are relatively prime to 21231457.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred thirty-one thousand four hundred fifty-seven

Notation

Scientific notation 2.1231457 × 10^7
Engineering notation 2.1231457 × 10^6

Prime Factorization of 21231457

Prime Factorization 13 × 113 × 149 × 97

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21231457
Product of the distinct prime numbers

The prime factorization of 21231457 is 13 × 113 × 149 × 97. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 18, 75, 154, 418, 633, 3654, 58495, 20171, 839173, 250387, 3138098, 6172430, 61402380, 56351554, 677928523, 576702371, 7281576287, 2682253512

Basic calculations (n = 21231457)

Multiplication

n×y
n×2 42462914
n×3 63694371
n×4 84925828
n×5 106157285

Division

n÷y
n÷2 10615728.5
n÷3 7077152.3333333
n÷3 5307864.25
n÷5 4246291.4

Exponentiation

ny
n2 450774766342849
n3 9.5706050682932E+21
n4 2.0319788997145E+29
n5 4.3141872634196E+36

Nth Root

y√n
2√n 4607.7605189506
3√n 276.90232320923
4√n 67.880487026469
5√n 29.20088135253

Divisors of 21231457

1, 13, 97, 113, 149, 1261, 1469, 1937, 10961, 14453, 16837, 142493, 187889, 218881, 1633189, 21231457

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 -21231456
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 21231457 can be divided by 16 positive divisors. The sum of these divisors (counting 21231457) is 1, the average is 0.0625.

Base conversion 21231457

Base System Value
2 Binary 1010000111111011101100001
3 Ternary 1110221200002021
4 Quaternary 1100333131201
5 Quinary 20413401312
6 Senary 2035021441
8 Octal 120773541
10 Decimal 21231457
12 Duodecimal 713a881
16 Hexadecimal 143f761
20 Vigesimal 6cdich
36 Base36 cn2ap

Cryptographic Hash Functions

md5 913a2a551cbd3752bc24b77aa2703d20
sha1 75d4bbceab7bb57503136932911f791e7837a624
sha256 8b5b98d14be1e81a213f2b56557f9887d5ad6918f578a64703e55aada11fb82d
sha512 a5b1931229699e9703887abd6cd5616da88b9e9d712675bf5d9b057c857f195c1d3cef90c634716ce0403d71810d1a7356e8d0b92dff62212889f90f32bc8043
ripemd-160 fe43e982013daef96e348c61ed4ea36e10023217

21231457 as geometric shapes

Circle

Radius = n
Diameter 42462914
Circumference 133401178.67242
Area 1.4161506943664E+15

Sphere

Radius = n
Volume 4.0089256763946E+22
Surface area 5.6646027774654E+15
Circumference 133401178.67242

Square

Length = n
Perimeter 84925828
Area 450774766342849
Diagonal 30025814.438341

Cube

Length = n
Surface area 2704648598057094
Volume 9.5706050682932E+21
Space diagonal 36773962.242714

Equilateral Triangle

Length = n
Perimeter 63694371
Area 1.9519119951895E+14
Altitude 18386981.121357

Triangular Pyramid

Length = n
Surface area 1.9519119951895E+14
Volume 1.1279066239747E+21
Height 10008604.81278