21031861 (number)

21031861 is an odd 8-digits composite number following 21031860 and preceding 21031862. In scientific notation, it is written as 2.1031861 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 20997900 positive integers (up to 21031861) that are relatively prime to 21031861.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand eight hundred sixty-one

Notation

Scientific notation 2.1031861 × 10^7
Engineering notation 2.1031861 × 10^6

Prime Factorization of 21031861

Prime Factorization 631 × 33331

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21031861
Product of the distinct prime numbers

The prime factorization of 21031861 is 631 × 33331. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 4, 85, 67, 612, 795, 3873, 6827, 66883, 50786, 258418, 571116, 6335635, 9773074, 2387294, 51265239, 904661506, 551585742, 7379890052, 5221591789

Basic calculations (n = 21031861)

Multiplication

n×y
n×2 42063722
n×3 63095583
n×4 84127444
n×5 105159305

Division

n÷y
n÷2 10515930.5
n÷3 7010620.3333333
n÷3 5257965.25
n÷5 4206372.2

Exponentiation

ny
n2 442339177123321
n3 9.3032160881121E+21
n4 1.9566394761814E+29
n5 4.1151769490159E+36

Nth Root

y√n
2√n 4586.0506974956
3√n 276.03187425062
4√n 67.720386129257
5√n 29.145770481025

Divisors of 21031861

1, 631, 33331, 21031861

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031860
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031861 can be divided by 4 positive divisors. The sum of these divisors (counting 21031861) is 1, the average is 0.25.

Base conversion 21031861

Base System Value
2 Binary 1010000001110101110110101
3 Ternary 1110120112021211
4 Quaternary 1100032232311
5 Quinary 20341004421
6 Senary 2030441421
8 Octal 120165665
10 Decimal 21031861
12 Duodecimal 7063271
16 Hexadecimal 140ebb5
20 Vigesimal 6b8jd1
36 Base36 cisad

Cryptographic Hash Functions

md5 a5f8b147d2cb2730fc73809a54a28b21
sha1 22b31bebddff646a696f310835eba5f31a911f0e
sha256 49d643e36f7c71be80c0631dbaffec3fe9ec524d414169db718402640e2cf6f5
sha512 2b10ea98ecf555301d0fac81958cb1584fe608c95c5df628981e8ecd8349b3b3881367315dd05eacf816e024e9486b3cc3f439caea5dc46f051220bd5fd2cb42
ripemd-160 bcb6ed343f511527d6522f4b068b45700cacae11

21031861 as geometric shapes

Circle

Radius = n
Diameter 42063722
Circumference 132147080.01784
Area 1.3896495092456E+15

Sphere

Radius = n
Volume 3.8969220422895E+22
Surface area 5.5585980369823E+15
Circumference 132147080.01784

Square

Length = n
Perimeter 84127444
Area 442339177123321
Diagonal 29743543.068146

Cube

Length = n
Surface area 2654035062739926
Volume 9.3032160881121E+21
Space diagonal 36428251.829726

Equilateral Triangle

Length = n
Perimeter 63095583
Area 1.9153848223895E+14
Altitude 18214125.914863

Triangular Pyramid

Length = n
Surface area 1.9153848223895E+14
Volume 1.096394530458E+21
Height 9914514.3560486