21491880 (number)

21491880 is an even 8-digits composite number following 21491879 and preceding 21491881. In scientific notation, it is written as 2.1491880 × 10^7. The sum of its digits is 33. It has a total of 6 prime factors and 32 positive divisors. There are 5731136 positive integers (up to 21491880) that are relatively prime to 21491880.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491880 × 10^7
Engineering notation 2.1491880 × 10^6

Prime Factorization of 21491880

Prime Factorization 2 × 2 × 2 × 3 × 5 × 179099

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5372970
Product of the distinct prime numbers

The prime factorization of 21491880 is 2 × 2 × 2 × 3 × 5 × 179099. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 7, 96, 85, 103, 747, 6282, 6169, 38079, 22199, 797888, 158498, 5726324, 5484973, 7849055, 97610242, 386263140, 649434543, 3738851223, 3956728386

Basic calculations (n = 21491880)

Multiplication

n×y
n×2 42983760
n×3 64475640
n×4 85967520
n×5 107459400

Division

n÷y
n÷2 10745940
n÷3 7163960
n÷3 5372970
n÷5 4298376

Exponentiation

ny
n2 461900905934400
n3 9.9271188422334E+21
n4 2.1335244690302E+29
n5 4.5853451865461E+36

Nth Root

y√n
2√n 4635.9335629407
3√n 278.02987791984
4√n 68.087690245306
5√n 29.272167487591

Divisors of 21491880

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 179099, 358198, 537297, 716396, 895495, 1074594, 1432792, 1790990, 2149188, 2686485, 3581980, 4298376, 5372970, 7163960, 10745940, 21491880

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 -21491879
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 21491880 can be divided by 32 positive divisors. The sum of these divisors (counting 21491880) is 1, the average is 0.03125.

Base conversion 21491880

Base System Value
2 Binary 1010001111111000010101000
3 Ternary 1111102220022120
4 Quaternary 1101333002220
5 Quinary 21000220010
6 Senary 2044351240
8 Octal 121770250
10 Decimal 21491880
12 Duodecimal 7245520
16 Hexadecimal 147f0a8
20 Vigesimal 6e69e0
36 Base36 csn8o

Cryptographic Hash Functions

md5 42cb03dc8eb3b7a092ed5e7c474c68de
sha1 f1a47391073d022ba08441e0f0263ab7f1d91fdd
sha256 bb3b0c1a1447ab39b7e01388f2f4b722ab1697bfae721ef8b3a0c4723cdc3cda
sha512 36b5babc3695b5dbc59130f9a36c94c4e4c4cb3812b312a78d378a09854452745dc403aa39cebfa7d7b37e7af6193fcb1883a15a2d834462eb7023fb2b0d5f28
ripemd-160 4232f5c50002bd805cf0bcb5e61579976059d801

21491880 as geometric shapes

Circle

Radius = n
Diameter 42983760
Circumference 135037464.63967
Area 1.45110449277E+15

Sphere

Radius = n
Volume 4.1582618168098E+22
Surface area 5.8044179710799E+15
Circumference 135037464.63967

Square

Length = n
Perimeter 85967520
Area 461900905934400
Diagonal 30394108.176895

Cube

Length = n
Surface area 2771405435606400
Volume 9.9271188422334E+21
Space diagonal 37225028.110173

Equilateral Triangle

Length = n
Perimeter 64475640
Area 2.0000895928512E+14
Altitude 18612514.055087

Triangular Pyramid

Length = n
Surface area 2.0000895928512E+14
Volume 1.1699221751647E+21
Height 10131369.392298