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

21551661 (number)

21551661 is an odd 8-digits composite number following 21551660 and preceding 21551662. In scientific notation, it is written as 2.1551661 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 14367768 positive integers (up to 21551661) that are relatively prime to 21551661.

Interesting facts

21551661 has 4 divisors, whose sum is 23946300
The reverse of 21551661 is 16615512
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-one million five hundred fifty-one thousand six hundred sixty-one

Notation

Scientific notation	2.1551661 × 10^7
Engineering notation	2.1551661 × 10^6

Prime Factorization of 21551661

Prime Factorization 9 × 2394629

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21551661	Product of the distinct prime numbers

The prime factorization of 21551661 is 9 × 2394629. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 64, 57, 775, 952, 3442, 7526, 99335, 43222, 355974, 886602, 4598915, 7282903, 85443398, 53551492, 862386715, 915840516, 7268244210, 4704941119

Basic calculations (n = 21551661)

Multiplication

n×y

n×2	43103322
n×3	64654983
n×4	86206644
n×5	107758305

Division

n÷y

n÷2	10775830.5
n÷3	7183887
n÷3	5387915.25
n÷5	4310332.2

Exponentiation

n^y

n²	464474091858921
n³	1.0010188171026E+22
n⁴	2.1573618200817E+29
n⁵	4.6494730600744E+36

Nth Root

^y√n

²√n	4642.376654258
³√n	278.28742506802
⁴√n	68.13498847331
⁵√n	29.288433869907

Divisors of 21551661

1, 9, 2394629, 21551661

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	-21551660	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 21551661 can be divided by 4 positive divisors. The sum of these divisors (counting 21551661) is 1, the average is 0.25.

Base conversion 21551661

Base	System	Value
2	Binary	1010010001101101000101101
3	Ternary	1111112221022200
4	Quaternary	1102031220231
5	Quinary	21004123121
6	Senary	2045532113
8	Octal	122155055
10	Decimal	21551661
12	Duodecimal	7274039
16	Hexadecimal	148da2d
20	Vigesimal	6edj31
36	Base36	ctxd9

Cryptographic Hash Functions

md5	cc7d25a742abd1d4089faa3cab951e72
sha1	3cd5350b3a0089def97e4bf84e7671143d645a0d
sha256	5828adbe112130c301ae409580c1c23b84ccd5ccbc2dd64ac6fc021d7592abd8
sha512	ec8e629ce9ceb2569a81b072551be76708aeb85c23279d8e14fc15bd0bd809b18407ebc7dca37ad614a33c20971a223d64029a72cf802dcdc8a2d06757d27c66
ripemd-160	70f568c77bf2467435d9db3767a7b3b57ae9c83b

21551661 as geometric shapes

Circle

Radius = n

Diameter	43103322
Circumference	135413079.74052
Area	1.4591883947668E+15

Sphere

Radius = n

Volume	4.1930578158864E+22
Surface area	5.8367535790671E+15
Circumference	135413079.74052

Square

Length = n

Perimeter	86206644
Area	464474091858921
Diagonal	30478651.277867

Cube

Length = n

Surface area	2786844551153526
Volume	1.0010188171026E+22
Space diagonal	37328571.839501

Equilateral Triangle

Length = n

Perimeter	64654983
Area	2.0112318147477E+14
Altitude	18664285.91975

Triangular Pyramid

Length = n

Surface area	2.0112318147477E+14
Volume	1.1797119894477E+21
Height	10159550.425956