21131685 (number)

21131685 is an odd 8-digits composite number following 21131684 and preceding 21131686. In scientific notation, it is written as 2.1131685 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 11270016 positive integers (up to 21131685) that are relatively prime to 21131685.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131685 × 10^7
Engineering notation 2.1131685 × 10^6

Prime Factorization of 21131685

Prime Factorization 3 × 45 × 3 × 52177

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7043895
Product of the distinct prime numbers

The prime factorization of 21131685 is 3 × 45 × 3 × 52177. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 74, 54, 677, 595, 1533, 1064, 33122, 76346, 791585, 491673, 9674557, 7798668, 72207578, 14603338, 136934835, 817137596, 6468806717, 3204598299

Basic calculations (n = 21131685)

Multiplication

n×y
n×2 42263370
n×3 63395055
n×4 84526740
n×5 105658425

Division

n÷y
n÷2 10565842.5
n÷3 7043895
n÷3 5282921.25
n÷5 4226337

Exponentiation

ny
n2 446548110939225
n3 9.4363140177128E+21
n4 1.9940521538339E+29
n5 4.213768198839E+36

Nth Root

y√n
2√n 4596.9212523166
3√n 276.4678972612
4√n 67.800599203227
5√n 29.173385150028

Divisors of 21131685

1, 3, 9, 45, 135, 405, 52177, 156531, 469593, 2347965, 7043895, 21131685

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131684
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131685 can be divided by 12 positive divisors. The sum of these divisors (counting 21131685) is 1, the average is 0.083333333333333.

Base conversion 21131685

Base System Value
2 Binary 1010000100111000110100101
3 Ternary 1110202121020000
4 Quaternary 1100213012211
5 Quinary 20402203220
6 Senary 2032531513
8 Octal 120470645
10 Decimal 21131685
12 Duodecimal 70b0b99
16 Hexadecimal 14271a5
20 Vigesimal 6c1945
36 Base36 ckxb9

Cryptographic Hash Functions

md5 eb820f99436633dc02b6159273ce3756
sha1 cf99b261323a1ba01d2416a5c0a72a1420aa9cb8
sha256 6040baf1b54d88ad7d4b0522c7efdfc1bc297132b5cf4865f4912d58362064b9
sha512 2dee0b21a652c1c63df951a877c207d420588dc330e6504df7436503d427543613c69c482c21c7e9d733f57b208636dffef2edb0c1872a2b6f1d505377aca839
ripemd-160 1ca7c2a737e62d5eb40c290dbd76e27909758443

21131685 as geometric shapes

Circle

Radius = n
Diameter 42263370
Circumference 132774292.70795
Area 1.4028722648011E+15

Sphere

Radius = n
Volume 3.9526739726684E+22
Surface area 5.6114890592043E+15
Circumference 132774292.70795

Square

Length = n
Perimeter 84526740
Area 446548110939225
Diagonal 29884715.522796

Cube

Length = n
Surface area 2679288665635350
Volume 9.4363140177128E+21
Space diagonal 36601152.069541

Equilateral Triangle

Length = n
Perimeter 63395055
Area 1.9336100404266E+14
Altitude 18300576.034771

Triangular Pyramid

Length = n
Surface area 1.9336100404266E+14
Volume 1.1120802718884E+21
Height 9961571.840932