21491842 (number)

21491842 is an even 8-digits composite number following 21491841 and preceding 21491843. In scientific notation, it is written as 2.1491842 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors. There are 9596160 positive integers (up to 21491842) that are relatively prime to 21491842.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491842 × 10^7
Engineering notation 2.1491842 × 10^6

Prime Factorization of 21491842

Prime Factorization 2 × 17 × 71 × 29 × 307

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21491842
Product of the distinct prime numbers

The prime factorization of 21491842 is 2 × 17 × 71 × 29 × 307. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 5, 9, 3, 364, 348, 2241, 9100, 13878, 88585, 768668, 513365, 2945170, 1530777, 70421879, 27810805, 454981607, 552158981, 257149850, 7772095736

Basic calculations (n = 21491842)

Multiplication

n×y
n×2 42983684
n×3 64475526
n×4 85967368
n×5 107459210

Division

n÷y
n÷2 10745921
n÷3 7163947.3333333
n÷3 5372960.5
n÷5 4298368.4

Exponentiation

ny
n2 461899272552964
n3 9.9270661856232E+21
n4 2.1335093798496E+29
n5 4.5853046497245E+36

Nth Root

y√n
2√n 4635.9294645195
3√n 278.0297140573
4√n 68.087660148661
5√n 29.272157136303

Divisors of 21491842

1, 2, 17, 29, 34, 58, 71, 142, 307, 493, 614, 986, 1207, 2059, 2414, 4118, 5219, 8903, 10438, 17806, 21797, 35003, 43594, 70006, 151351, 302702, 370549, 632113, 741098, 1264226, 10745921, 21491842

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 -21491841
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 21491842 can be divided by 32 positive divisors. The sum of these divisors (counting 21491842) is 1, the average is 0.03125.

Base conversion 21491842

Base System Value
2 Binary 1010001111111000010000010
3 Ternary 1111102220021011
4 Quaternary 1101333002002
5 Quinary 21000214332
6 Senary 2044351134
8 Octal 121770202
10 Decimal 21491842
12 Duodecimal 72454aa
16 Hexadecimal 147f082
20 Vigesimal 6e69c2
36 Base36 csn7m

Cryptographic Hash Functions

md5 579445d565a2746f6ab4b1b8625849c5
sha1 854838e479b149fbc899ae839f832006ab53ba9b
sha256 609e4f1755c4ef5b13831b024c383cbd535f96f67d0d7f2c2566177f07b6eb48
sha512 e1c5430c4d7a7619cca1cd97faabc7da2ff41862b5a410f3709d9ac465bf1a12875eb5a99239464fa47adbe415bbccbb4698675ddcc9282ed4d27d6a0a2abc80
ripemd-160 e2855a5fa6a2bee906cf0eab95fc2a660c543afe

21491842 as geometric shapes

Circle

Radius = n
Diameter 42983684
Circumference 135037225.87863
Area 1.4510993613509E+15

Sphere

Radius = n
Volume 4.1582397600605E+22
Surface area 5.8043974454034E+15
Circumference 135037225.87863

Square

Length = n
Perimeter 85967368
Area 461899272552964
Diagonal 30394054.43678

Cube

Length = n
Surface area 2771395635317784
Volume 9.9270661856232E+21
Space diagonal 37224962.292243

Equilateral Triangle

Length = n
Perimeter 64475526
Area 2.0000825201021E+14
Altitude 18612481.146121

Triangular Pyramid

Length = n
Surface area 2.0000825201021E+14
Volume 1.1699159695236E+21
Height 10131351.478927