21031885 (number)

21031885 is an odd 8-digits composite number following 21031884 and preceding 21031886. In scientific notation, it is written as 2.1031885 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 14184000 positive integers (up to 21031885) that are relatively prime to 21031885.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1031885 × 10^7
Engineering notation 2.1031885 × 10^6

Prime Factorization of 21031885

Prime Factorization 5 × 7 × 61 × 9851

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031885
Product of the distinct prime numbers

The prime factorization of 21031885 is 5 × 7 × 61 × 9851. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 43, 42, 457, 382, 8616, 295, 9236, 76691, 82746, 9932, 3677252, 7074949, 45728957, 70288191, 674869276, 809425556, 2619389193, 7275885812

Basic calculations (n = 21031885)

Multiplication

n×y
n×2 42063770
n×3 63095655
n×4 84127540
n×5 105159425

Division

n÷y
n÷2 10515942.5
n÷3 7010628.3333333
n÷3 5257971.25
n÷5 4206377

Exponentiation

ny
n2 442340186653225
n3 9.3032479365692E+21
n4 1.9566484072841E+29
n5 4.1152004287432E+36

Nth Root

y√n
2√n 4586.0533141253
3√n 276.03197924628
4√n 67.720405448619
5√n 29.14577713282

Divisors of 21031885

1, 5, 7, 35, 61, 305, 427, 2135, 9851, 49255, 68957, 344785, 600911, 3004555, 4206377, 21031885

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 -21031884
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 21031885 can be divided by 16 positive divisors. The sum of these divisors (counting 21031885) is 1, the average is 0.0625.

Base conversion 21031885

Base System Value
2 Binary 1010000001110101111001101
3 Ternary 1110120112022201
4 Quaternary 1100032233031
5 Quinary 20341010020
6 Senary 2030441501
8 Octal 120165715
10 Decimal 21031885
12 Duodecimal 7063291
16 Hexadecimal 140ebcd
20 Vigesimal 6b8je5
36 Base36 cisb1

Cryptographic Hash Functions

md5 882b1d02a194b4555095899269f26142
sha1 d753fd39b956c882ebdc63cd3314b2c2113bbbb0
sha256 13bfc5dd743d196371bc80703ee2ea2007557492b55b639c965229de649f94b4
sha512 1593cba58f70624571e96812a4622eb8f9132a3b04ef8599a37fc9567a1671d800cb659bda44e20e8f77f5d2bbc7dfe3f7997ceab659b096aa0feb12aa718668
ripemd-160 71815bb3ff4e636c315e2cad91fa82aac7b9f245

21031885 as geometric shapes

Circle

Radius = n
Diameter 42063770
Circumference 132147230.81429
Area 1.3896526807773E+15

Sphere

Radius = n
Volume 3.89693538294E+22
Surface area 5.5586107231092E+15
Circumference 132147230.81429

Square

Length = n
Perimeter 84127540
Area 442340186653225
Diagonal 29743577.009271

Cube

Length = n
Surface area 2654041119919350
Volume 9.3032479365692E+21
Space diagonal 36428293.398946

Equilateral Triangle

Length = n
Perimeter 63095655
Area 1.9153891937822E+14
Altitude 18214146.699473

Triangular Pyramid

Length = n
Surface area 1.9153891937822E+14
Volume 1.0963982838346E+21
Height 9914525.6697571