21031965 (number)

21031965 is an odd 8-digits composite number following 21031964 and preceding 21031966. In scientific notation, it is written as 2.1031965 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 11153760 positive integers (up to 21031965) that are relatively prime to 21031965.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred sixty-five

Notation

Scientific notation 2.1031965 × 10^7
Engineering notation 2.1031965 × 10^6

Prime Factorization of 21031965

Prime Factorization 45 × 191 × 2447

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21031965
Product of the distinct prime numbers

The prime factorization of 21031965 is 45 × 191 × 2447. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 71, 66, 389, 608, 6300, 5042, 54643, 49427, 727751, 561288, 4989382, 1056161, 65064688, 83343481, 843836663, 363998237, 5900372894, 9337463040

Basic calculations (n = 21031965)

Multiplication

n×y
n×2 42063930
n×3 63095895
n×4 84127860
n×5 105159825

Division

n÷y
n÷2 10515982.5
n÷3 7010655
n÷3 5257991.25
n÷5 4206393

Exponentiation

ny
n2 442343551761225
n3 9.3033540986178E+21
n4 1.9566781778474E+29
n5 4.1152786952749E+36

Nth Root

y√n
2√n 4586.0620362136
3√n 276.03232923124
4√n 67.720469846374
5√n 29.145799305428

Divisors of 21031965

1, 45, 191, 2447, 8595, 110115, 467377, 21031965

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 -21031964
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 21031965 can be divided by 8 positive divisors. The sum of these divisors (counting 21031965) is 1, the average is 0.125.

Base conversion 21031965

Base System Value
2 Binary 1010000001110110000011101
3 Ternary 1110120112102200
4 Quaternary 1100032300131
5 Quinary 20341010330
6 Senary 2030442113
8 Octal 120166035
10 Decimal 21031965
12 Duodecimal 7063339
16 Hexadecimal 140ec1d
20 Vigesimal 6b8ji5
36 Base36 cisd9

Cryptographic Hash Functions

md5 69cda349dc993ad00136a231f5857a86
sha1 091c0b0612fd044302e3ec3f81cace98f57c7ea9
sha256 af4ae0f94c377ca64961ea3f2ef6f171a7f7bef4d78ee194342f739646f35eb6
sha512 e70743270a348267ce5c15d0eb203fb4ae12d44d6809cd35cc467650a10ddd1941e7beb0ee3117608836a35efa44afbee72af24e2838301ea67e2b600c5d8a32
ripemd-160 3d160b548e054600768e8eef125939173f16bfd8

21031965 as geometric shapes

Circle

Radius = n
Diameter 42063930
Circumference 132147733.46912
Area 1.3896632525759E+15

Sphere

Radius = n
Volume 3.8969798519949E+22
Surface area 5.5586530103035E+15
Circumference 132147733.46912

Square

Length = n
Perimeter 84127860
Area 442343551761225
Diagonal 29743690.146356

Cube

Length = n
Surface area 2654061310567350
Volume 9.3033540986178E+21
Space diagonal 36428431.96301

Equilateral Triangle

Length = n
Perimeter 63095895
Area 1.9154037651273E+14
Altitude 18214215.981505

Triangular Pyramid

Length = n
Surface area 1.9154037651273E+14
Volume 1.096410795152E+21
Height 9914563.3821188