21931938 (number)

21931938 is an even 8-digits composite number following 21931937 and preceding 21931939. In scientific notation, it is written as 2.1931938 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 5895936 positive integers (up to 21931938) that are relatively prime to 21931938.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred thirty-one thousand nine hundred thirty-eight

Notation

Scientific notation 2.1931938 × 10^7
Engineering notation 2.1931938 × 10^6

Prime Factorization of 21931938

Prime Factorization 2 × 9 × 21 × 17 × 3413

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21931938
Product of the distinct prime numbers

The prime factorization of 21931938 is 2 × 9 × 21 × 17 × 3413. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 50, 11, 1, 784, 4033, 276, 29299, 75572, 828727, 747343, 1942290, 9719482, 3408646, 49828800, 454801771, 211260030, 152990575, 2238123301

Basic calculations (n = 21931938)

Multiplication

n×y
n×2 43863876
n×3 65795814
n×4 87727752
n×5 109659690

Division

n÷y
n÷2 10965969
n÷3 7310646
n÷3 5482984.5
n÷5 4386387.6

Exponentiation

ny
n2 481009904435844
n3 1.0549479401473E+22
n4 2.3137052816538E+29
n5 5.0744040787504E+36

Nth Root

y√n
2√n 4683.1547059648
3√n 279.91467638317
4√n 68.43357878969
5√n 29.391070323515

Divisors of 21931938

1, 2, 9, 17, 18, 21, 34, 42, 153, 189, 306, 357, 378, 714, 3213, 3413, 6426, 6826, 30717, 58021, 61434, 71673, 116042, 143346, 522189, 645057, 1044378, 1218441, 1290114, 2436882, 10965969, 21931938

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21931937
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21931938 can be divided by 32 positive divisors. The sum of these divisors (counting 21931938) is 1, the average is 0.03125.

Base conversion 21931938

Base System Value
2 Binary 1010011101010011110100010
3 Ternary 1112021020222000
4 Quaternary 1103222132202
5 Quinary 21103310223
6 Senary 2102024430
8 Octal 123523642
10 Decimal 21931938
12 Duodecimal 7418116
16 Hexadecimal 14ea7a2
20 Vigesimal 6h19gi
36 Base36 d22si

Cryptographic Hash Functions

md5 d09f07773476fd1dedcd0b645e22a6e3
sha1 e573cda675b169354e0186fbac1a761c8655552e
sha256 33847f923f102a05445b8a3df4c11e437a0d8a571d1d438d56cb8d9e79079065
sha512 2d076ef489127576392cde4e3c4d61664907ce0033d5caefea83c5d33fb09021caf2fb2957b48a04fa7077a4fb48a9caafee873ceff13b500de8326adca6b5ee
ripemd-160 10fe7f6143329a368a196d3a9511c828608373f3

21931938 as geometric shapes

Circle

Radius = n
Diameter 43863876
Circumference 137802430.59957
Area 1.5111371820796E+15

Sphere

Radius = n
Volume 4.4189555982485E+22
Surface area 6.0445487283183E+15
Circumference 137802430.59957

Square

Length = n
Perimeter 87727752
Area 481009904435844
Diagonal 31016444.168726

Cube

Length = n
Surface area 2886059426615064
Volume 1.0549479401473E+22
Space diagonal 37987230.924451

Equilateral Triangle

Length = n
Perimeter 65795814
Area 2.0828339835668E+14
Altitude 18993615.462225

Triangular Pyramid

Length = n
Surface area 2.0828339835668E+14
Volume 1.2432680704615E+21
Height 10338814.722909