21431457 (number)

21431457 is an odd 8-digits composite number following 21431456 and preceding 21431458. In scientific notation, it is written as 2.1431457 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 14287632 positive integers (up to 21431457) that are relatively prime to 21431457.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1431457 × 10^7
Engineering notation 2.1431457 × 10^6

Prime Factorization of 21431457

Prime Factorization 9 × 2381273

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21431457
Product of the distinct prime numbers

The prime factorization of 21431457 is 9 × 2381273. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 2, 82, 71, 347, 265, 4299, 1016, 87759, 70765, 569724, 889417, 5921670, 6791591, 76452082, 70197031, 470977725, 214111979, 378129597, 3576183802

Basic calculations (n = 21431457)

Multiplication

n×y
n×2 42862914
n×3 64294371
n×4 85725828
n×5 107157285

Division

n÷y
n÷2 10715728.5
n÷3 7143819
n÷3 5357864.25
n÷5 4286291.4

Exponentiation

ny
n2 459307349142849
n3 9.843625702939E+21
n4 2.1096324097663E+29
n5 4.5212496275713E+36

Nth Root

y√n
2√n 4629.4121657074
3√n 277.76907915279
4√n 68.03978369827
5√n 29.255689593755

Divisors of 21431457

1, 9, 2381273, 21431457

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21431456
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21431457 can be divided by 4 positive divisors. The sum of these divisors (counting 21431457) is 1, the average is 0.25.

Base conversion 21431457

Base System Value
2 Binary 1010001110000010010100001
3 Ternary 1111022211102200
4 Quaternary 1101300102201
5 Quinary 20441301312
6 Senary 2043203413
8 Octal 121602241
10 Decimal 21431457
12 Duodecimal 7216569
16 Hexadecimal 14704a1
20 Vigesimal 6diich
36 Base36 crcm9

Cryptographic Hash Functions

md5 fc7001c0963efb36c8a8e90398f37fa8
sha1 b3e111f4b69e092414c60486e72e4a585381d74b
sha256 e6abec533214ed5d7fe0708f06ad0c44e9aa4d45b896687fc877e7a6a5eb5a85
sha512 9bca2ba1a08690d480cd21f9e66a88571da32e59927251a9e2ba68c7a65a546e620d218d1dae9d1f1734e76ab86ee455adce730d5aeb87a7ffa7ffed2796d46f
ripemd-160 816e917d9521b71069cccd28091d2a950b71b91b

21431457 as geometric shapes

Circle

Radius = n
Diameter 42862914
Circumference 134657815.73385
Area 1.442956593807E+15

Sphere

Radius = n
Volume 4.1232882924054E+22
Surface area 5.7718263752279E+15
Circumference 134657815.73385

Square

Length = n
Perimeter 85725828
Area 459307349142849
Diagonal 30308657.150816

Cube

Length = n
Surface area 2755844094857094
Volume 9.843625702939E+21
Space diagonal 37120372.404228

Equilateral Triangle

Length = n
Perimeter 64294371
Area 1.988859162513E+14
Altitude 18560186.202114

Triangular Pyramid

Length = n
Surface area 1.988859162513E+14
Volume 1.1600824143351E+21
Height 10102885.716939