21490420 (number)

21490420 is an even 8-digits composite number following 21490419 and preceding 21490421. In scientific notation, it is written as 2.1490420 × 10^7. The sum of its digits is 22. It has a total of 6 prime factors and 36 positive divisors. There are 7367808 positive integers (up to 21490420) that are relatively prime to 21490420.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1490420 × 10^7
Engineering notation 2.1490420 × 10^6

Prime Factorization of 21490420

Prime Factorization 2 × 2 × 5 × 7 × 7 × 21929

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1535030
Product of the distinct prime numbers

The prime factorization of 21490420 is 2 × 2 × 5 × 7 × 7 × 21929. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 7, 64, 41, 787, 639, 5100, 9417, 17852, 95263, 279574, 945472, 772210, 4516033, 65143115, 84027512, 147669522, 786017443, 2758979018, 2566935179

Basic calculations (n = 21490420)

Multiplication

n×y
n×2 42980840
n×3 64471260
n×4 85961680
n×5 107452100

Division

n÷y
n÷2 10745210
n÷3 7163473.3333333
n÷3 5372605
n÷5 4298084

Exponentiation

ny
n2 461838151776400
n3 9.9250958536986E+21
n4 2.1329447843624E+29
n5 4.5837879252758E+36

Nth Root

y√n
2√n 4635.7760946793
3√n 278.02358201003
4√n 68.086533871826
5√n 29.2717697697

Divisors of 21490420

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 21929, 43858, 87716, 109645, 153503, 219290, 307006, 438580, 614012, 767515, 1074521, 1535030, 2149042, 3070060, 4298084, 5372605, 10745210, 21490420

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21490419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490420 can be divided by 36 positive divisors. The sum of these divisors (counting 21490420) is 1, the average is 0.027777777777778.

Base conversion 21490420

Base System Value
2 Binary 1010001111110101011110100
3 Ternary 1111102211022111
4 Quaternary 1101332223310
5 Quinary 21000143140
6 Senary 2044340404
8 Octal 121765364
10 Decimal 21490420
12 Duodecimal 7244704
16 Hexadecimal 147eaf4
20 Vigesimal 6e6610
36 Base36 csm44

Cryptographic Hash Functions

md5 aec7d1874d2748ec2ae461f25972a684
sha1 34eb3bb0f74e8465288bb9235f6f16dd526ac990
sha256 9d8423813b4e788db298af618a48abbfbc7e7e7089d42403410f91ab62831961
sha512 06269f08e546b329976a68940a547d7079589469b84fbde093579f67477fd19e2f3c34e1d3036f17ed0f30030a0c8a53c9c58786c8e26aec2f0608892507cb73
ripemd-160 b5f4dbc1a7bd9e3434859037819c91698755a35d

21490420 as geometric shapes

Circle

Radius = n
Diameter 42980840
Circumference 135028291.18912
Area 1.4509073447682E+15

Sphere

Radius = n
Volume 4.1574144293539E+22
Surface area 5.8036293790729E+15
Circumference 135028291.18912

Square

Length = n
Perimeter 85961680
Area 461838151776400
Diagonal 30392043.425094

Cube

Length = n
Surface area 2771028910658400
Volume 9.9250958536986E+21
Space diagonal 37222499.315994

Equilateral Triangle

Length = n
Perimeter 64471260
Area 1.9998178593761E+14
Altitude 18611249.657997

Triangular Pyramid

Length = n
Surface area 1.9998178593761E+14
Volume 1.1696837636795E+21
Height 10130681.141698