Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21131855 (number)

21131855 is an odd 8-digits composite number following 21131854 and preceding 21131856. In scientific notation, it is written as 2.1131855 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 16905480 positive integers (up to 21131855) that are relatively prime to 21131855.

Interesting facts

21131855 has 4 divisors, whose sum is 25358232
The reverse of 21131855 is 55813112
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-one million one hundred thirty-one thousand eight hundred fifty-five

Notation

Scientific notation	2.1131855 × 10^7
Engineering notation	2.1131855 × 10^6

Prime Factorization of 21131855

Prime Factorization 5 × 4226371

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131855	Product of the distinct prime numbers

The prime factorization of 21131855 is 5 × 4226371. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 54, 65, 740, 341, 479, 2004, 51569, 44182, 786710, 818883, 2863817, 3680557, 31743805, 86813328, 906961057, 462205284, 4981238853, 542967196

Basic calculations (n = 21131855)

Multiplication

n×y

n×2	42263710
n×3	63395565
n×4	84527420
n×5	105659275

Division

n÷y

n÷2	10565927.5
n÷3	7043951.6666667
n÷3	5282963.75
n÷5	4226371

Exponentiation

n^y

n²	446555295741025
n³	9.4365417590815E+21
n⁴	1.9941163215435E+29
n⁵	4.2139376959992E+36

Nth Root

^y√n

²√n	4596.9397429159
³√n	276.46863863474
⁴√n	67.800735563237
⁵√n	29.173432088637

Divisors of 21131855

1, 5, 4226371, 21131855

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	-21131854	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 21131855 can be divided by 4 positive divisors. The sum of these divisors (counting 21131855) is 1, the average is 0.25.

Base conversion 21131855

Base	System	Value
2	Binary	1010000100111001001001111
3	Ternary	1110202121110022
4	Quaternary	1100213021033
5	Quinary	20402204410
6	Senary	2032532355
8	Octal	120471117
10	Decimal	21131855
12	Duodecimal	70b10bb
16	Hexadecimal	142724f
20	Vigesimal	6c19cf
36	Base36	ckxfz

Cryptographic Hash Functions

md5	adbb74d4ab5defcf7277a6320ba1dd73
sha1	57844f8316803290d90cb35a0466818c8cba3350
sha256	4efc604c0cd3fea23f32c158e68af83c8a2d214b2ca20b0338c4f8ab82dbc47c
sha512	61aae1123341d0070f95a32253c98eaeca04c7b92d46364aba047d2dde3c1a6854dd89f3fb22858aeb0c9714cd3ad252de7e4fa63cc1461d9c26399d92d6896c
ripemd-160	af4bdb4b845ea45dafa48f092c3c60aeabcb8bed

21131855 as geometric shapes

Circle

Radius = n

Diameter	42263710
Circumference	132775360.84945
Area	1.4028948365216E+15

Sphere

Radius = n

Volume	3.9527693687498E+22
Surface area	5.6115793460865E+15
Circumference	132775360.84945

Square

Length = n

Perimeter	84527420
Area	446555295741025
Diagonal	29884955.939102

Cube

Length = n

Surface area	2679331774446150
Volume	9.4365417590815E+21
Space diagonal	36601446.518178

Equilateral Triangle

Length = n

Perimeter	63395565
Area	1.933641151531E+14
Altitude	18300723.259089

Triangular Pyramid

Length = n

Surface area	1.933641151531E+14
Volume	1.1121071114661E+21
Height	9961651.9797006