21490840 (number)

21490840 is an even 8-digits composite number following 21490839 and preceding 21490841. In scientific notation, it is written as 2.1490840 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 16 positive divisors. There are 7368192 positive integers (up to 21490840) that are relatively prime to 21490840.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1490840 × 10^7
Engineering notation 2.1490840 × 10^6

Prime Factorization of 21490840

Prime Factorization 2 × 2 × 2 × 35 × 76753

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5372710
Product of the distinct prime numbers

The prime factorization of 21490840 is 2 × 2 × 2 × 35 × 76753. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 4, 95, 54, 437, 452, 6174, 1556, 91700, 41278, 653995, 346642, 9339256, 8713708, 28925316, 6598363, 96521829, 212184901, 2577108768, 9404316721

Basic calculations (n = 21490840)

Multiplication

n×y
n×2 42981680
n×3 64472520
n×4 85963360
n×5 107454200

Division

n÷y
n÷2 10745420
n÷3 7163613.3333333
n÷3 5372710
n÷5 4298168

Exponentiation

ny
n2 461856203905600
n3 9.9256777811426E+21
n4 2.1331115308609E+29
n5 4.5842358611887E+36

Nth Root

y√n
2√n 4635.8213943162
3√n 278.02539319138
4√n 68.086866533247
5√n 29.271884183911

Divisors of 21490840

1, 2, 4, 8, 35, 70, 140, 280, 76753, 153506, 307012, 614024, 2686355, 5372710, 10745420, 21490840

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 -21490839
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 21490840 can be divided by 16 positive divisors. The sum of these divisors (counting 21490840) is 1, the average is 0.0625.

Base conversion 21490840

Base System Value
2 Binary 1010001111110110010011000
3 Ternary 1111102211220001
4 Quaternary 1101332302120
5 Quinary 21000201330
6 Senary 2044342344
8 Octal 121766230
10 Decimal 21490840
12 Duodecimal 72449b4
16 Hexadecimal 147ec98
20 Vigesimal 6e6720
36 Base36 csmfs

Cryptographic Hash Functions

md5 4cee2ca8031b3f0d4e1e4b413d0807e9
sha1 85b0e7384163f95a7b4e5443bf97ad8e28db21df
sha256 f70bcafb05c212b9e160a114a38450ba11c60efe6f6846c1c36716e7c69d88c9
sha512 73190b7ae12f17d5ef83e4e9dc9b4f6b313b27c66ee197a134ff0594e3031bfbd6cf3c1fa712e21a839518b057c2f38e7e90383a9c6047ac060cfcab704c7f18
ripemd-160 a288c292bcc60b81e4b945adc4ca407d0fa9eeea

21490840 as geometric shapes

Circle

Radius = n
Diameter 42981680
Circumference 135030930.12695
Area 1.4509640572047E+15

Sphere

Radius = n
Volume 4.1576581865516E+22
Surface area 5.8038562288188E+15
Circumference 135030930.12695

Square

Length = n
Perimeter 85963360
Area 461856203905600
Diagonal 30392637.39479

Cube

Length = n
Surface area 2771137223433600
Volume 9.9256777811426E+21
Space diagonal 37223226.777334

Equilateral Triangle

Length = n
Perimeter 64472520
Area 1.9998960273885E+14
Altitude 18611613.388667

Triangular Pyramid

Length = n
Surface area 1.9998960273885E+14
Volume 1.1697523444864E+21
Height 10130879.131597