21291240 (number)

21291240 is an even 8-digits composite number following 21291239 and preceding 21291241. In scientific notation, it is written as 2.1291240 × 10^7. The sum of its digits is 21. It has a total of 6 prime factors and 32 positive divisors. There are 5677632 positive integers (up to 21291240) that are relatively prime to 21291240.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred ninety-one thousand two hundred forty

Notation

Scientific notation 2.1291240 × 10^7
Engineering notation 2.1291240 × 10^6

Prime Factorization of 21291240

Prime Factorization 2 × 2 × 2 × 3 × 5 × 177427

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5322810
Product of the distinct prime numbers

The prime factorization of 21291240 is 2 × 2 × 2 × 3 × 5 × 177427. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 8, 53, 28, 797, 953, 1221, 7891, 89935, 91072, 139163, 20291, 675219, 2572297, 7101754, 83622326, 414621516, 419813660, 3257435719, 435090890

Basic calculations (n = 21291240)

Multiplication

n×y
n×2 42582480
n×3 63873720
n×4 85164960
n×5 106456200

Division

n÷y
n÷2 10645620
n÷3 7097080
n÷3 5322810
n÷5 4258248

Exponentiation

ny
n2 453316900737600
n3 9.6516789296604E+21
n4 2.0549621249434E+29
n5 4.3752691793081E+36

Nth Root

y√n
2√n 4614.2431665442
3√n 277.16197783955
4√n 67.928220693201
5√n 29.217307482754

Divisors of 21291240

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177427, 354854, 532281, 709708, 887135, 1064562, 1419416, 1774270, 2129124, 2661405, 3548540, 4258248, 5322810, 7097080, 10645620, 21291240

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 -21291239
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 21291240 can be divided by 32 positive divisors. The sum of these divisors (counting 21291240) is 1, the average is 0.03125.

Base conversion 21291240

Base System Value
2 Binary 1010001001110000011101000
3 Ternary 1111001201002110
4 Quaternary 1101032003220
5 Quinary 20422304430
6 Senary 2040202320
8 Octal 121160350
10 Decimal 21291240
12 Duodecimal 71693a0
16 Hexadecimal 144e0e8
20 Vigesimal 6d1820
36 Base36 cocfc

Cryptographic Hash Functions

md5 6081695d4a46a6b02b1c18a026778ad1
sha1 3fd6c13daf80843d65cf197169abd159b606b657
sha256 03a4dd4b58fd09baa0625542692a3133e1c229e4f81556975ba1ae53def288ab
sha512 7332499b10babb5d40685dea51a723be616e66fa03107097c2583ed77ea93cfb16739cd0c8b9471f130f749d5e5a3a06839f42602e2ee48c9957068290605897
ripemd-160 69185224ce23d1c40dc2e75f5283ac0a5f6d1c6a

21291240 as geometric shapes

Circle

Radius = n
Diameter 42582480
Circumference 133776806.33963
Area 1.4241370451053E+15

Sphere

Radius = n
Volume 4.0428858160305E+22
Surface area 5.6965481804214E+15
Circumference 133776806.33963

Square

Length = n
Perimeter 85164960
Area 453316900737600
Diagonal 30110360.367741

Cube

Length = n
Surface area 2719901404425600
Volume 9.6516789296604E+21
Space diagonal 36877509.436143

Equilateral Triangle

Length = n
Perimeter 63873720
Area 1.962919760018E+14
Altitude 18438754.718071

Triangular Pyramid

Length = n
Surface area 1.962919760018E+14
Volume 1.1374612701664E+21
Height 10036786.789247