21861145 (number)

21861145 is an odd 8-digits composite number following 21861144 and preceding 21861146. In scientific notation, it is written as 2.1861145 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 17164224 positive integers (up to 21861145) that are relatively prime to 21861145.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand one hundred forty-five

Notation

Scientific notation 2.1861145 × 10^7
Engineering notation 2.1861145 × 10^6

Prime Factorization of 21861145

Prime Factorization 5 × 199 × 127 × 173

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21861145
Product of the distinct prime numbers

The prime factorization of 21861145 is 5 × 199 × 127 × 173. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 2, 49, 75, 749, 738, 4095, 476, 67883, 67998, 804293, 468654, 1363488, 9107107, 21131264, 93509012, 489568887, 689007488, 8105510013, 275635507

Basic calculations (n = 21861145)

Multiplication

n×y
n×2 43722290
n×3 65583435
n×4 87444580
n×5 109305725

Division

n÷y
n÷2 10930572.5
n÷3 7287048.3333333
n÷3 5465286.25
n÷5 4372229

Exponentiation

ny
n2 477909660711025
n3 1.0447652389705E+22
n4 2.2839764380093E+29
n5 4.9930340087904E+36

Nth Root

y√n
2√n 4675.5903370591
3√n 279.61317758228
4√n 68.378288491736
5√n 29.372071786243

Divisors of 21861145

1, 5, 127, 173, 199, 635, 865, 995, 21971, 25273, 34427, 109855, 126365, 172135, 4372229, 21861145

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 -21861144
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 21861145 can be divided by 16 positive divisors. The sum of these divisors (counting 21861145) is 1, the average is 0.0625.

Base conversion 21861145

Base System Value
2 Binary 1010011011001001100011001
3 Ternary 1112010122212001
4 Quaternary 1103121030121
5 Quinary 21044024040
6 Senary 2100321001
8 Octal 123311431
10 Decimal 21861145
12 Duodecimal 73a3161
16 Hexadecimal 14d9319
20 Vigesimal 6gcch5
36 Base36 d0k61

Cryptographic Hash Functions

md5 4be7c3872f877a1a1b7474cc053054c3
sha1 76b64fb0bd048e5071161cc44ad0d8223ff0b7fc
sha256 3f866f927e32274af5e85355640ace86ad38b51da31ccb92b2003f8372d3f00a
sha512 9a2788d3af1bfdd1649f7d0ae70cd59c2eb227c6bb043ad34f5c4f75de861de2d7ce59881a62627bf20e26eefcb81237da3e2b49dc99e40605a112bf541ecc2e
ripemd-160 630e7586e00c728650b38fc0c4cad89eeea22607

21861145 as geometric shapes

Circle

Radius = n
Diameter 43722290
Circumference 137357625.06212
Area 1.5013974791693E+15

Sphere

Radius = n
Volume 4.3763023993007E+22
Surface area 6.0055899166774E+15
Circumference 137357625.06212

Square

Length = n
Perimeter 87444580
Area 477909660711025
Diagonal 30916327.748005

Cube

Length = n
Surface area 2867457964266150
Volume 1.0447652389705E+22
Space diagonal 37864613.85163

Equilateral Triangle

Length = n
Perimeter 65583435
Area 2.0694095344487E+14
Altitude 18932306.925815

Triangular Pyramid

Length = n
Surface area 2.0694095344487E+14
Volume 1.23126764204E+21
Height 10305442.582668