21031686 (number)

21031686 is an even 8-digits composite number following 21031685 and preceding 21031687. In scientific notation, it is written as 2.1031686 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 6071040 positive integers (up to 21031686) that are relatively prime to 21031686.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand six hundred eighty-six

Notation

Scientific notation 2.1031686 × 10^7
Engineering notation 2.1031686 × 10^6

Prime Factorization of 21031686

Prime Factorization 2 × 13 × 9 × 289 × 311

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21031686
Product of the distinct prime numbers

The prime factorization of 21031686 is 2 × 13 × 9 × 289 × 311. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 8, 52, 8, 331, 129, 9841, 5435, 80045, 93932, 839713, 873193, 2372210, 652079, 68939890, 59058754, 698360471, 853938948, 5354195329, 6966809839

Basic calculations (n = 21031686)

Multiplication

n×y
n×2 42063372
n×3 63095058
n×4 84126744
n×5 105158430

Division

n÷y
n÷2 10515843
n÷3 7010562
n÷3 5257921.5
n÷5 4206337.2

Exponentiation

ny
n2 442331816002596
n3 9.3029838619764E+21
n4 1.9565743544815E+29
n5 4.1150057459109E+36

Nth Root

y√n
2√n 4586.0316178587
3√n 276.03110865484
4√n 67.720245258407
5√n 29.145721978167

Divisors of 21031686

1, 2, 9, 13, 18, 26, 117, 234, 289, 311, 578, 622, 2601, 2799, 3757, 4043, 5202, 5598, 7514, 8086, 33813, 36387, 67626, 72774, 89879, 179758, 808911, 1168427, 1617822, 2336854, 10515843, 21031686

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 -21031685
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 21031686 can be divided by 32 positive divisors. The sum of these divisors (counting 21031686) is 1, the average is 0.03125.

Base conversion 21031686

Base System Value
2 Binary 1010000001110101100000110
3 Ternary 1110120112001100
4 Quaternary 1100032230012
5 Quinary 20341003221
6 Senary 2030440530
8 Octal 120165406
10 Decimal 21031686
12 Duodecimal 7063146
16 Hexadecimal 140eb06
20 Vigesimal 6b8j46
36 Base36 cis5i

Cryptographic Hash Functions

md5 f1d48200150f94f5f29a943b5495cfef
sha1 3628d52a47143c3ca2eb61633f7362859c8adc5a
sha256 58dde671563645caa77ee1db24d78550814a6d8f1cea3c94e5a85aab7ee62cc5
sha512 76eaaa949a012868dcaab39693be679b82dec35d7ac8e1b8826feba3a2644d114652c97f0bba784ffdc94fd25dd79df448d1678c68fe82893ddd74408b58d9d1
ripemd-160 a776e5601d348a14a471cfb46463ac139c83cb75

21031686 as geometric shapes

Circle

Radius = n
Diameter 42063372
Circumference 132145980.46041
Area 1.3896263836028E+15

Sphere

Radius = n
Volume 3.8968247676333E+22
Surface area 5.5585055344112E+15
Circumference 132145980.46041

Square

Length = n
Perimeter 84126744
Area 442331816002596
Diagonal 29743295.580772

Cube

Length = n
Surface area 2653990896015576
Volume 9.3029838619764E+21
Space diagonal 36427948.720835

Equilateral Triangle

Length = n
Perimeter 63095058
Area 1.9153529478018E+14
Altitude 18213974.360418

Triangular Pyramid

Length = n
Surface area 1.9153529478018E+14
Volume 1.0963671623454E+21
Height 9914431.8602575