21861288 (number)

21861288 is an even 8-digits composite number following 21861287 and preceding 21861289. In scientific notation, it is written as 2.1861288 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 32 positive divisors. There are 7247520 positive integers (up to 21861288) that are relatively prime to 21861288.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand two hundred eighty-eight

Notation

Scientific notation 2.1861288 × 10^7
Engineering notation 2.1861288 × 10^6

Prime Factorization of 21861288

Prime Factorization 2 × 2 × 2 × 9 × 211 × 1439

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5465322
Product of the distinct prime numbers

The prime factorization of 21861288 is 2 × 2 × 2 × 9 × 211 × 1439. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 10, 20, 65, 8, 369, 3937, 6434, 78045, 81960, 699484, 94567, 3601973, 4728633, 21562169, 76161681, 362900438, 423248822, 6310705619, 5987956120

Basic calculations (n = 21861288)

Multiplication

n×y
n×2 43722576
n×3 65583864
n×4 87445152
n×5 109306440

Division

n÷y
n÷2 10930644
n÷3 7287096
n÷3 5465322
n÷5 4372257.6

Exponentiation

ny
n2 477915913018944
n3 1.044785741429E+22
n4 2.2840361991673E+29
n5 4.9931973152422E+36

Nth Root

y√n
2√n 4675.6056292207
3√n 279.61378725753
4√n 68.378400311945
5√n 29.372110212367

Divisors of 21861288

1, 2, 4, 8, 9, 18, 36, 72, 211, 422, 844, 1439, 1688, 1899, 2878, 3798, 5756, 7596, 11512, 12951, 15192, 25902, 51804, 103608, 303629, 607258, 1214516, 2429032, 2732661, 5465322, 10930644, 21861288

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 -21861287
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 21861288 can be divided by 32 positive divisors. The sum of these divisors (counting 21861288) is 1, the average is 0.03125.

Base conversion 21861288

Base System Value
2 Binary 1010011011001001110101000
3 Ternary 1112010200001100
4 Quaternary 1103121032220
5 Quinary 21044030123
6 Senary 2100321400
8 Octal 123311650
10 Decimal 21861288
12 Duodecimal 73a3260
16 Hexadecimal 14d93a8
20 Vigesimal 6gcd48
36 Base36 d0ka0

Cryptographic Hash Functions

md5 7fd1c5996949a9f3f3b2980f50f874b3
sha1 60ca8ae6a32a6e10ccbf54af67129269c371ef20
sha256 a206c1be808ce11621af5c560426449a1cee78e62d4df7fc1fab08666249810d
sha512 85b8652018339a32b391de1f6df7f5215cd2c630e37affcec9d5f86f8fa6d917707ce1b42a8ae886940e44dae0ff9c007845e8f84cbcceb578f7d1630f7b6c34
ripemd-160 1cf019d6eab479bc46d9ad9dc39c1814357937d4

21861288 as geometric shapes

Circle

Radius = n
Diameter 43722576
Circumference 137358523.55762
Area 1.501417121374E+15

Sphere

Radius = n
Volume 4.3763882797983E+22
Surface area 6.0056684854959E+15
Circumference 137358523.55762

Square

Length = n
Perimeter 87445152
Area 477915913018944
Diagonal 30916529.980544

Cube

Length = n
Surface area 2867495478113664
Volume 1.044785741429E+22
Space diagonal 37864861.534896

Equilateral Triangle

Length = n
Perimeter 65583864
Area 2.0694366077362E+14
Altitude 18932430.767448

Triangular Pyramid

Length = n
Surface area 2.0694366077362E+14
Volume 1.2312918044191E+21
Height 10305509.993515