21921245 (number)

21921245 is an odd 8-digits composite number following 21921244 and preceding 21921246. In scientific notation, it is written as 2.1921245 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 15934464 positive integers (up to 21921245) that are relatively prime to 21921245.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred twenty-one thousand two hundred forty-five

Notation

Scientific notation 2.1921245 × 10^7
Engineering notation 2.1921245 × 10^6

Prime Factorization of 21921245

Prime Factorization 5 × 29 × 17 × 8893

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21921245
Product of the distinct prime numbers

The prime factorization of 21921245 is 5 × 29 × 17 × 8893. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 97, 69, 996, 269, 8355, 8907, 52382, 94342, 711725, 890989, 4519117, 3902750, 51487740, 90466567, 311674202, 866241851, 7363363935, 9648849668

Basic calculations (n = 21921245)

Multiplication

n×y
n×2 43842490
n×3 65763735
n×4 87684980
n×5 109606225

Division

n÷y
n÷2 10960622.5
n÷3 7307081.6666667
n÷3 5480311.25
n÷5 4384249

Exponentiation

ny
n2 480540982350025
n3 1.0534056606636E+22
n4 2.3091963571793E+29
n5 5.0620459098834E+36

Nth Root

y√n
2√n 4682.0129218104
3√n 279.8691778321
4√n 68.425236001131
5√n 29.388203818749

Divisors of 21921245

1, 5, 17, 29, 85, 145, 493, 2465, 8893, 44465, 151181, 257897, 755905, 1289485, 4384249, 21921245

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 -21921244
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 21921245 can be divided by 16 positive divisors. The sum of these divisors (counting 21921245) is 1, the average is 0.0625.

Base conversion 21921245

Base System Value
2 Binary 1010011100111110111011101
3 Ternary 1112020201021222
4 Quaternary 1103213313131
5 Quinary 21102434440
6 Senary 2101503125
8 Octal 123476735
10 Decimal 21921245
12 Duodecimal 7411aa5
16 Hexadecimal 14e7ddd
20 Vigesimal 6h0325
36 Base36 d1ujh

Cryptographic Hash Functions

md5 1cc48b3b5b3cb2ca083a41f5ffc2919a
sha1 25ae2ff0122fcae604442fb8a6d4fb3caf5c4231
sha256 0c28a4c2ab223bffd598fd47d12825aa5cf3d876a5268bd1a371cf4c9ff6e30c
sha512 a049fd622afd1eeb0d24fdf1a4813a6664975fc37215812bb9ed021e3e0aef59c2a220b18dc521192660ab477df63b1c48a4cadc56d08a3b75fdd02023fa1b12
ripemd-160 2c7437cb33eeb8ab061ff371ee5628c7a6aa4c1b

21921245 as geometric shapes

Circle

Radius = n
Diameter 43842490
Circumference 137735244.49908
Area 1.5096640198997E+15

Sphere

Radius = n
Volume 4.412495313054E+22
Surface area 6.0386560795986E+15
Circumference 137735244.49908

Square

Length = n
Perimeter 87684980
Area 480540982350025
Diagonal 31001321.983103

Cube

Length = n
Surface area 2883245894100150
Volume 1.0534056606636E+22
Space diagonal 37968710.105165

Equilateral Triangle

Length = n
Perimeter 65763735
Area 2.0808034913733E+14
Altitude 18984355.052583

Triangular Pyramid

Length = n
Surface area 2.0808034913733E+14
Volume 1.2414504766592E+21
Height 10333773.994368