21491636 (number)

21491636 is an even 8-digits composite number following 21491635 and preceding 21491637. In scientific notation, it is written as 2.1491636 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 10735608 positive integers (up to 21491636) that are relatively prime to 21491636.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491636 × 10^7
Engineering notation 2.1491636 × 10^6

Prime Factorization of 21491636

Prime Factorization 2 × 2 × 1483 × 3623

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10745818
Product of the distinct prime numbers

The prime factorization of 21491636 is 2 × 2 × 1483 × 3623. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 3, 44, 35, 909, 950, 8971, 5289, 46471, 44857, 517007, 387966, 560655, 1536921, 24276586, 53497990, 24947426, 643748624, 2229865057, 3354573034

Basic calculations (n = 21491636)

Multiplication

n×y
n×2 42983272
n×3 64474908
n×4 85966544
n×5 107458180

Division

n÷y
n÷2 10745818
n÷3 7163878.6666667
n÷3 5372909
n÷5 4298327.2

Exponentiation

ny
n2 461890417956496
n3 9.9267807346089E+21
n4 2.1334275820003E+29
n5 4.585084902471E+36

Nth Root

y√n
2√n 4635.9072466994
3√n 278.02882574654
4√n 68.087496992468
5√n 29.272101021174

Divisors of 21491636

1, 2, 4, 1483, 2966, 3623, 5932, 7246, 14492, 5372909, 10745818, 21491636

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491635
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491636 can be divided by 12 positive divisors. The sum of these divisors (counting 21491636) is 1, the average is 0.083333333333333.

Base conversion 21491636

Base System Value
2 Binary 1010001111110111110110100
3 Ternary 1111102212222112
4 Quaternary 1101332332310
5 Quinary 21000213021
6 Senary 2044350152
8 Octal 121767664
10 Decimal 21491636
12 Duodecimal 7245358
16 Hexadecimal 147efb4
20 Vigesimal 6e691g
36 Base36 csn1w

Cryptographic Hash Functions

md5 9ac52a24ce51810c9c2c420cf93fbc8f
sha1 9c50ffb464180d942c2522491c7e65374b8f5eaa
sha256 e23fb4defa0dec525d4e401c2a9f5cd52e218510db3e04d9e8816db49c5a741a
sha512 acbacdef1304e9e8305f5c7a2d422b76ebc497c76948dbcc6a2ebc59f2bc6c1bfaf879b9b19b1941df99ac9d73760b5162c716ad3c1a7fe6af0de8082eb23c2e
ripemd-160 08f99372f39c43bb78b502064b574e307b67c869

21491636 as geometric shapes

Circle

Radius = n
Diameter 42983272
Circumference 135035931.54245
Area 1.4510715438156E+15

Sphere

Radius = n
Volume 4.1581201906192E+22
Surface area 5.8042861752626E+15
Circumference 135035931.54245

Square

Length = n
Perimeter 85966544
Area 461890417956496
Diagonal 30393763.108786

Cube

Length = n
Surface area 2771342507738976
Volume 9.9267807346089E+21
Space diagonal 37224605.489776

Equilateral Triangle

Length = n
Perimeter 64474908
Area 2.0000441785747E+14
Altitude 18612302.744888

Triangular Pyramid

Length = n
Surface area 2.0000441785747E+14
Volume 1.169882328799E+21
Height 10131254.369595