21471745 (number)

21471745 is an odd 8-digits composite number following 21471744 and preceding 21471746. In scientific notation, it is written as 2.1471745 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 16498944 positive integers (up to 21471745) that are relatively prime to 21471745.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred seventy-one thousand seven hundred forty-five

Notation

Scientific notation 2.1471745 × 10^7
Engineering notation 2.1471745 × 10^6

Prime Factorization of 21471745

Prime Factorization 5 × 29 × 373 × 397

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21471745
Product of the distinct prime numbers

The prime factorization of 21471745 is 5 × 29 × 373 × 397. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 85, 1, 951, 790, 1926, 8093, 53691, 96645, 455829, 511897, 1556469, 1174258, 79070097, 97496854, 641589070, 152052457, 7920152104, 9376181393

Basic calculations (n = 21471745)

Multiplication

n×y
n×2 42943490
n×3 64415235
n×4 85886980
n×5 107358725

Division

n÷y
n÷2 10735872.5
n÷3 7157248.3333333
n÷3 5367936.25
n÷5 4294349

Exponentiation

ny
n2 461035833345025
n3 9.8992438494469E+21
n4 2.1255403962814E+29
n5 4.5639061376154E+36

Nth Root

y√n
2√n 4633.7614310622
3√n 277.94302526146
4√n 68.071737388304
5√n 29.266680614501

Divisors of 21471745

1, 5, 29, 145, 373, 397, 1865, 1985, 10817, 11513, 54085, 57565, 148081, 740405, 4294349, 21471745

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 -21471744
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 21471745 can be divided by 16 positive divisors. The sum of these divisors (counting 21471745) is 1, the average is 0.0625.

Base conversion 21471745

Base System Value
2 Binary 1010001111010001000000001
3 Ternary 1111101212200211
4 Quaternary 1101322020001
5 Quinary 20444043440
6 Senary 2044114121
8 Octal 121721001
10 Decimal 21471745
12 Duodecimal 7235941
16 Hexadecimal 147a201
20 Vigesimal 6e3j75
36 Base36 cs7pd

Cryptographic Hash Functions

md5 20ea80002c409d12e584512ef3c5e323
sha1 ae3960bfc02fa2efa6476e16969ddd521d1d65fe
sha256 6fad9bde69276a4cb44b495c8aabb8be8f941a900a8ed76daf334f504e8efa33
sha512 259058a7fae29fa4a26d6ed29e0c31f115986ab26895fbb0cee115b22a60bbb3fd43b0d8b041ca382eecc294595c5baeeaf080227cd73e837c4cb97587e755d6
ripemd-160 476f486e51afd4e4fa752ab5013af79f354ddbae

21471745 as geometric shapes

Circle

Radius = n
Diameter 42943490
Circumference 134910952.70351
Area 1.4483867870784E+15

Sphere

Radius = n
Volume 4.1465855671355E+22
Surface area 5.7935471483135E+15
Circumference 134910952.70351

Square

Length = n
Perimeter 85886980
Area 461035833345025
Diagonal 30365632.986817

Cube

Length = n
Surface area 2766215000070150
Volume 9.8992438494469E+21
Space diagonal 37190153.267163

Equilateral Triangle

Length = n
Perimeter 64415235
Area 1.9963437186586E+14
Altitude 18595076.633582

Triangular Pyramid

Length = n
Surface area 1.9963437186586E+14
Volume 1.1666370757605E+21
Height 10121877.662272