21495939 (number)

21495939 is an odd 8-digits composite number following 21495938 and preceding 21495940. In scientific notation, it is written as 2.1495939 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 13445120 positive integers (up to 21495939) that are relatively prime to 21495939.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-five thousand nine hundred thirty-nine

Notation

Scientific notation 2.1495939 × 10^7
Engineering notation 2.1495939 × 10^6

Prime Factorization of 21495939

Prime Factorization 3 × 17 × 809 × 521

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21495939
Product of the distinct prime numbers

The prime factorization of 21495939 is 3 × 17 × 809 × 521. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 41, 19, 648, 378, 3312, 9971, 99454, 96258, 918668, 195299, 8734753, 2843434, 32516360, 85493183, 198300023, 654459944, 2064799299, 8674146412

Basic calculations (n = 21495939)

Multiplication

n×y
n×2 42991878
n×3 64487817
n×4 85983756
n×5 107479695

Division

n÷y
n÷2 10747969.5
n÷3 7165313
n÷3 5373984.75
n÷5 4299187.8

Exponentiation

ny
n2 462075393491721
n3 9.932744471899E+21
n4 2.1351366927053E+29
n5 4.5896768103055E+36

Nth Root

y√n
2√n 4636.3713181755
3√n 278.04737991341
4√n 68.09090481243
5√n 29.273273084244

Divisors of 21495939

1, 3, 17, 51, 521, 809, 1563, 2427, 8857, 13753, 26571, 41259, 421489, 1264467, 7165313, 21495939

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 -21495938
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 21495939 can be divided by 16 positive divisors. The sum of these divisors (counting 21495939) is 1, the average is 0.0625.

Base conversion 21495939

Base System Value
2 Binary 1010010000000000010000011
3 Ternary 1111110002212220
4 Quaternary 1102000002003
5 Quinary 21000332224
6 Senary 2044422123
8 Octal 122000203
10 Decimal 21495939
12 Duodecimal 7247943
16 Hexadecimal 1480083
20 Vigesimal 6e6jgj
36 Base36 csqdf

Cryptographic Hash Functions

md5 d6ee8988c07ff7218ec3034775d2a38d
sha1 cac57cd5a11756afbc6ae69cc1e1e435d166d8f1
sha256 6ce5270344618b95894aeaa2da4bfce297f08b230f2620c88973aacab160dd73
sha512 ec419e99f67ed14fcd75d29f995a24bfcb92a2ebe2b4281f43b5e07ab1a491cbe9266799674386a5637fd3abb7ee8e118fce18772e4fad765fd457a1f08dd180
ripemd-160 5ca58cf37f5e948eb68270d3153ab04f341f1c8f

21495939 as geometric shapes

Circle

Radius = n
Diameter 42991878
Circumference 135062968.08883
Area 1.4516526615982E+15

Sphere

Radius = n
Volume 4.1606182750537E+22
Surface area 5.8066106463928E+15
Circumference 135062968.08883

Square

Length = n
Perimeter 85983756
Area 462075393491721
Diagonal 30399848.469745

Cube

Length = n
Surface area 2772452360950326
Volume 9.932744471899E+21
Space diagonal 37232058.504401

Equilateral Triangle

Length = n
Perimeter 64487817
Area 2.0008451461376E+14
Altitude 18616029.252201

Triangular Pyramid

Length = n
Surface area 2.0008451461376E+14
Volume 1.1705851619788E+21
Height 10133282.823248