21306985 (number)

21306985 is an odd 8-digits composite number following 21306984 and preceding 21306986. In scientific notation, it is written as 2.1306985 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 14572800 positive integers (up to 21306985) that are relatively prime to 21306985.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred six thousand nine hundred eighty-five

Notation

Scientific notation 2.1306985 × 10^7
Engineering notation 2.1306985 × 10^6

Prime Factorization of 21306985

Prime Factorization 35 × 691 × 881

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21306985
Product of the distinct prime numbers

The prime factorization of 21306985 is 35 × 691 × 881. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 35, 36, 975, 767, 8620, 4376, 38537, 96189, 862883, 583630, 4187329, 9285492, 13338365, 76587085, 745688773, 561499169, 5464630260, 8113103965

Basic calculations (n = 21306985)

Multiplication

n×y
n×2 42613970
n×3 63920955
n×4 85227940
n×5 106534925

Division

n÷y
n÷2 10653492.5
n÷3 7102328.3333333
n÷3 5326746.25
n÷5 4261397

Exponentiation

ny
n2 453987609790225
n3 9.6731071919862E+21
n4 2.0610474984304E+29
n5 4.3914708133344E+36

Nth Root

y√n
2√n 4615.9489815205
3√n 277.23028198825
4√n 67.940775544002
5√n 29.22162747999

Divisors of 21306985

1, 35, 691, 881, 24185, 30835, 608771, 21306985

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21306984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21306985 can be divided by 8 positive divisors. The sum of these divisors (counting 21306985) is 1, the average is 0.125.

Base conversion 21306985

Base System Value
2 Binary 1010001010001111001101001
3 Ternary 1111002111200121
4 Quaternary 1101101321221
5 Quinary 20423310420
6 Senary 2040403241
8 Octal 121217151
10 Decimal 21306985
12 Duodecimal 7176521
16 Hexadecimal 1451e69
20 Vigesimal 6d3795
36 Base36 cookp

Cryptographic Hash Functions

md5 a09e1c1fa926e5c74c5d31eb40f53346
sha1 d769f9408ed64e79350c4430cc42401f0a0d903c
sha256 f7d31f371600663a1ecea4c1e9f92b3ec7ce2cba6a621d7dfe5725b0a2358782
sha512 7e2795472bf3320295720ecfa3dd487d00a0257fe8d712e51fde958f4da4853d4697745dbe16c2443936cb10f8f4afab74c72048818381028ac2742a82e8b0fe
ripemd-160 6ee0b131f9103778c50757ea62b6e22d8eecca36

21306985 as geometric shapes

Circle

Radius = n
Diameter 42613970
Circumference 133875735.0923
Area 1.4262441397378E+15

Sphere

Radius = n
Volume 4.051861665564E+22
Surface area 5.704976558951E+15
Circumference 133875735.0923

Square

Length = n
Perimeter 85227940
Area 453987609790225
Diagonal 30132627.16028

Cube

Length = n
Surface area 2723925658741350
Volume 9.6731071919862E+21
Space diagonal 36904780.576108

Equilateral Triangle

Length = n
Perimeter 63920955
Area 1.9658240154086E+14
Altitude 18452390.288054

Triangular Pyramid

Length = n
Surface area 1.9658240154086E+14
Volume 1.1399866150996E+21
Height 10044209.053427