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

21551881 (number)

21551881 is an odd 8-digits composite number following 21551880 and preceding 21551882. In scientific notation, it is written as 2.1551881 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 19747200 positive integers (up to 21551881) that are relatively prime to 21551881.

Interesting facts

21551881 has 8 divisors, whose sum is 23381064
The reverse of 21551881 is 18815512
Previous prime number is 137

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	2.1551881 × 10^7
Engineering notation	2.1551881 × 10^6

Prime Factorization of 21551881

Prime Factorization 13 × 137 × 12101

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21551881	Product of the distinct prime numbers

The prime factorization of 21551881 is 13 × 137 × 12101. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 3, 22, 91, 976, 531, 3289, 7493, 54074, 16088, 132460, 964493, 8001812, 1934032, 23441774, 10283550, 879988259, 531464506, 8168486762, 6017822141

Basic calculations (n = 21551881)

Multiplication

n×y

n×2	43103762
n×3	64655643
n×4	86207524
n×5	107759405

Division

n÷y

n÷2	10775940.5
n÷3	7183960.3333333
n÷3	5387970.25
n÷5	4310376.2

Exponentiation

n^y

n²	464483574638161
n³	1.0010494727056E+22
n⁴	2.1574499110864E+29
n⁵	4.6497103747196E+36

Nth Root

^y√n

²√n	4642.4003489574
³√n	278.28837198692
⁴√n	68.135162353644
⁵√n	29.288493665104

Divisors of 21551881

1, 13, 137, 1781, 12101, 157313, 1657837, 21551881

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	-21551880	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 21551881 can be divided by 8 positive divisors. The sum of these divisors (counting 21551881) is 1, the average is 0.125.

Base conversion 21551881

Base	System	Value
2	Binary	1010010001101101100001001
3	Ternary	1111112221121211
4	Quaternary	1102031230021
5	Quinary	21004130011
6	Senary	2045533121
8	Octal	122155411
10	Decimal	21551881
12	Duodecimal	72741a1
16	Hexadecimal	148db09
20	Vigesimal	6edje1
36	Base36	ctxjd

Cryptographic Hash Functions

md5	1947ae4132ad1fc3bf3a842b8904bb80
sha1	11de779c4533b672b05d5c3bc491046d100d5b7d
sha256	3ed6810bf6128a1886d05b84adc591bb380cdddd4e3a618e702ef1bddf19dec0
sha512	aa23bbc8bb3396b5b409a741d806d0affd1799b2c578e694ea9920b264acc4c5a7280c76ff7269550d62db7708113d9811516e5683ce40d0e1b55faa1e2c71d9
ripemd-160	89fcd04d37fd588574cbbc98c736020bcdd41912

21551881 as geometric shapes

Circle

Radius = n

Diameter	43103762
Circumference	135414462.04128
Area	1.4592181857964E+15

Sphere

Radius = n

Volume	4.1931862257759E+22
Surface area	5.8368727431855E+15
Circumference	135414462.04128

Square

Length = n

Perimeter	86207524
Area	464483574638161
Diagonal	30478962.404851

Cube

Length = n

Surface area	2786901447828966
Volume	1.0010494727056E+22
Space diagonal	37328952.890678

Equilateral Triangle

Length = n

Perimeter	64655643
Area	2.0112728763863E+14
Altitude	18664476.445339

Triangular Pyramid

Length = n

Surface area	2.0112728763863E+14
Volume	1.1797481174223E+21
Height	10159654.13495