21281750 (number)

21281750 is an even 8-digits composite number following 21281749 and preceding 21281751. In scientific notation, it is written as 2.1281750 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 32 positive divisors. There are 7296000 positive integers (up to 21281750) that are relatively prime to 21281750.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred eighty-one thousand seven hundred fifty

Notation

Scientific notation 2.1281750 × 10^7
Engineering notation 2.1281750 × 10^6

Prime Factorization of 21281750

Prime Factorization 2 × 25 × 7 × 5 × 12161

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21281750
Product of the distinct prime numbers

The prime factorization of 21281750 is 2 × 25 × 7 × 5 × 12161. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 6, 56, 12, 854, 702, 5448, 5262, 70025, 38110, 307444, 915940, 5222252, 2021047, 18115881, 97981089, 338182580, 498883955, 3215830695, 1617559042

Basic calculations (n = 21281750)

Multiplication

n×y
n×2 42563500
n×3 63845250
n×4 85127000
n×5 106408750

Division

n÷y
n÷2 10640875
n÷3 7093916.6666667
n÷3 5320437.5
n÷5 4256350

Exponentiation

ny
n2 452912883062500
n3 9.6387787491154E+21
n4 2.0513007964399E+29
n5 4.3655270724634E+36

Nth Root

y√n
2√n 4613.2147142746
3√n 277.12079254367
4√n 67.920650131419
5√n 29.214702451804

Divisors of 21281750

1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 875, 1750, 12161, 24322, 60805, 85127, 121610, 170254, 304025, 425635, 608050, 851270, 1520125, 2128175, 3040250, 4256350, 10640875, 21281750

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21281749
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21281750 can be divided by 32 positive divisors. The sum of these divisors (counting 21281750) is 1, the average is 0.03125.

Base conversion 21281750

Base System Value
2 Binary 1010001001011101111010110
3 Ternary 1111001020001222
4 Quaternary 1101023233112
5 Quinary 20422004000
6 Senary 2040050342
8 Octal 121135726
10 Decimal 21281750
12 Duodecimal 71639b2
16 Hexadecimal 144bbd6
20 Vigesimal 6d047a
36 Base36 co53q

Cryptographic Hash Functions

md5 bdf000267201c612c6e279122c7bc294
sha1 b0cd3441ea45051d8f896f5f66280e2846f5c49a
sha256 be24ec5e4f53a4b9912b1b61e6f99c279434740814d9a071fba247701d42c7e9
sha512 d7deaf5fb539b6b7ae76bbecaf331fa409713bafbd1510021955309f37f37c832ab6976ffeda6244814ab193895e75b99beab21b99df3b4ce2191491d4f3929e
ripemd-160 23f7e2f923b505148730a4399329e2d7b79723dd

21281750 as geometric shapes

Circle

Radius = n
Diameter 42563500
Circumference 133717178.91107
Area 1.4228677861453E+15

Sphere

Radius = n
Volume 4.0374822010398E+22
Surface area 5.6914711445813E+15
Circumference 133717178.91107

Square

Length = n
Perimeter 85127000
Area 452912883062500
Diagonal 30096939.481034

Cube

Length = n
Surface area 2717477298375000
Volume 9.6387787491154E+21
Space diagonal 36861072.273979

Equilateral Triangle

Length = n
Perimeter 63845250
Area 1.9611703121669E+14
Altitude 18430536.136989

Triangular Pyramid

Length = n
Surface area 1.9611703121669E+14
Volume 1.1359409693094E+21
Height 10032313.160345