21397906 (number)

21397906 is an even 8-digits composite number following 21397905 and preceding 21397907. In scientific notation, it is written as 2.1397906 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 10450944 positive integers (up to 21397906) that are relatively prime to 21397906.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred ninety-seven thousand nine hundred six

Notation

Scientific notation 2.1397906 × 10^7
Engineering notation 2.1397906 × 10^6

Prime Factorization of 21397906

Prime Factorization 2 × 73 × 113 × 1297

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21397906
Product of the distinct prime numbers

The prime factorization of 21397906 is 2 × 73 × 113 × 1297. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 88, 93, 601, 81, 2350, 4604, 67777, 40027, 846463, 660047, 2123689, 8037952, 37432659, 76987739, 723943282, 92711445, 6335239551, 913152788

Basic calculations (n = 21397906)

Multiplication

n×y
n×2 42795812
n×3 64193718
n×4 85591624
n×5 106989530

Division

n÷y
n÷2 10698953
n÷3 7132635.3333333
n÷3 5349476.5
n÷5 4279581.2

Exponentiation

ny
n2 457870381184836
n3 9.7974673767773E+21
n4 2.0964528596635E+29
n5 4.485970122451E+36

Nth Root

y√n
2√n 4625.7870681647
3√n 277.62405404933
4√n 68.013138937743
5√n 29.246523881205

Divisors of 21397906

1, 2, 73, 113, 146, 226, 1297, 2594, 8249, 16498, 94681, 146561, 189362, 293122, 10698953, 21397906

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 -21397905
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 21397906 can be divided by 16 positive divisors. The sum of these divisors (counting 21397906) is 1, the average is 0.0625.

Base conversion 21397906

Base System Value
2 Binary 1010001101000000110010010
3 Ternary 1111021010102001
4 Quaternary 1101220012102
5 Quinary 20434213111
6 Senary 2042344214
8 Octal 121500622
10 Decimal 21397906
12 Duodecimal 71bb06a
16 Hexadecimal 1468192
20 Vigesimal 6deef6
36 Base36 cqmqa

Cryptographic Hash Functions

md5 f918bf72631f0a5f58f4aab174dda910
sha1 54230ad0b467ba493361796a21ea01f7abddec28
sha256 b97aedb8df65048fc4b7991a42c0938ea4b4157cd22b6023a7955de72a5b5813
sha512 928ba9e39d68055cfb8aff658f03828b307075f5d17b34ba6846a5edddf26ad4972024fe4285036afeef79b0fb730b3d2e6caa68d820fee2da059d672b4c1283
ripemd-160 e37d6a22df514b161b22f4f2c6527f59d50075cc

21397906 as geometric shapes

Circle

Radius = n
Diameter 42795812
Circumference 134447008.58361
Area 1.4384422258266E+15

Sphere

Radius = n
Volume 4.1039535379559E+22
Surface area 5.7537689033066E+15
Circumference 134447008.58361

Square

Length = n
Perimeter 85591624
Area 457870381184836
Diagonal 30261208.871585

Cube

Length = n
Surface area 2747222287109016
Volume 9.7974673767773E+21
Space diagonal 37062260.367583

Equilateral Triangle

Length = n
Perimeter 64193718
Area 1.9826369087327E+14
Altitude 18531130.183791

Triangular Pyramid

Length = n
Surface area 1.9826369087327E+14
Volume 1.1546426034289E+21
Height 10087069.623862