21131894 (number)

21131894 is an even 8-digits composite number following 21131893 and preceding 21131895. In scientific notation, it is written as 2.1131894 × 10^7. The sum of its digits is 29. It has a total of 6 prime factors and 64 positive divisors. There are 7983360 positive integers (up to 21131894) that are relatively prime to 21131894.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred ninety-four

Notation

Scientific notation 2.1131894 × 10^7
Engineering notation 2.1131894 × 10^6

Prime Factorization of 21131894

Prime Factorization 2 × 7 × 23 × 31 × 73 × 29

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 21131894
Product of the distinct prime numbers

The prime factorization of 21131894 is 2 × 7 × 23 × 31 × 73 × 29. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 7, 81, 32, 620, 294, 224, 8752, 32772, 73166, 404616, 960868, 3428631, 3700884, 36264883, 3765368, 645098281, 890592981, 9588187730, 1295243392

Basic calculations (n = 21131894)

Multiplication

n×y
n×2 42263788
n×3 63395682
n×4 84527576
n×5 105659470

Division

n÷y
n÷2 10565947
n÷3 7043964.6666667
n÷3 5282973.5
n÷5 4226378.8

Exponentiation

ny
n2 446556944027236
n3 9.4365940061475E+21
n4 1.9941310425894E+29
n5 4.213976581411E+36

Nth Root

y√n
2√n 4596.9439848665
3√n 276.46880871399
4√n 67.800766845711
5√n 29.173442856864

Divisors of 21131894

1, 2, 7, 14, 23, 29, 31, 46, 58, 62, 73, 146, 161, 203, 217, 322, 406, 434, 511, 667, 713, 899, 1022, 1334, 1426, 1679, 1798, 2117, 2263, 3358, 4234, 4526, 4669, 4991, 6293, 9338, 9982, 11753, 12586, 14819, 15841, 20677, 23506, 29638, 31682, 41354, 48691, 52049, 65627, 97382, 104098, 131254, 144739, 289478, 340837, 364343, 459389, 681674, 728686, 918778, 1509421, 3018842, 10565947, 21131894

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131893
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131894 can be divided by 64 positive divisors. The sum of these divisors (counting 21131894) is 1, the average is 0.015625.

Base conversion 21131894

Base System Value
2 Binary 1010000100111001001110110
3 Ternary 1110202121111202
4 Quaternary 1100213021312
5 Quinary 20402210034
6 Senary 2032532502
8 Octal 120471166
10 Decimal 21131894
12 Duodecimal 70b1132
16 Hexadecimal 1427276
20 Vigesimal 6c19ee
36 Base36 ckxh2

Cryptographic Hash Functions

md5 9dc572a1717f8ae2a5bc1c98e2de270a
sha1 d79829144ebeb3d789877d2d25f6d636f31ea889
sha256 aef1ed13a1e6ac22aa26315e0c467abe398fff81703ba5861820f770997b8314
sha512 4e24340329264751fcead75a7ae7d219e624da369036c4e67ab7682d016fe9e16cee771c7d8e31a35b63c81b6a98f2ebb795cee1f03b0b25be06dc480efbe50d
ripemd-160 ce58f4331d214ff2fad53ec05dc157fe1bb76077

21131894 as geometric shapes

Circle

Radius = n
Diameter 42263788
Circumference 132775605.89368
Area 1.4029000147655E+15

Sphere

Radius = n
Volume 3.9527912539497E+22
Surface area 5.6116000590619E+15
Circumference 132775605.89368

Square

Length = n
Perimeter 84527576
Area 446556944027236
Diagonal 29885011.093431

Cube

Length = n
Surface area 2679341664163416
Volume 9.4365940061475E+21
Space diagonal 36601514.06816

Equilateral Triangle

Length = n
Perimeter 63395682
Area 1.9336482888197E+14
Altitude 18300757.03408

Triangular Pyramid

Length = n
Surface area 1.9336482888197E+14
Volume 1.1121132688419E+21
Height 9961670.3644769