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

21493561 (number)

21493561 is an odd 8-digits composite number following 21493560 and preceding 21493562. In scientific notation, it is written as 2.1493561 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 21459492 positive integers (up to 21493561) that are relatively prime to 21493561.

Interesting facts

21493561 has 4 divisors, whose sum is 21527632
The reverse of 21493561 is 16539412
Previous prime number is 643

Basic properties

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

Name

Name	twenty-one million four hundred ninety-three thousand five hundred sixty-one

Notation

Scientific notation	2.1493561 × 10^7
Engineering notation	2.1493561 × 10^6

Prime Factorization of 21493561

Prime Factorization 643 × 33427

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21493561	Product of the distinct prime numbers

The prime factorization of 21493561 is 643 × 33427. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 7, 8, 629, 327, 7480, 9900, 62809, 78392, 125390, 989304, 8379890, 8761381, 1581430, 82176909, 548016337, 291000882, 2732742823, 5119062898

Basic calculations (n = 21493561)

Multiplication

n×y

n×2	42987122
n×3	64480683
n×4	85974244
n×5	107467805

Division

n÷y

n÷2	10746780.5
n÷3	7164520.3333333
n÷3	5373390.25
n÷5	4298712.2

Exponentiation

n^y

n²	461973164460721
n³	9.9294483906995E+21
n⁴	2.1341920468185E+29
n⁵	4.5871386944009E+36

Nth Root

^y√n

²√n	4636.1148605271
³√n	278.03712648751
⁴√n	68.089021585914
⁵√n	29.272625381215

Divisors of 21493561

1, 643, 33427, 21493561

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	-21493560	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 21493561 can be divided by 4 positive divisors. The sum of these divisors (counting 21493561) is 1, the average is 0.25.

Base conversion 21493561

Base	System	Value
2	Binary	1010001111111011100111001
3	Ternary	1111102222121211
4	Quaternary	1101333130321
5	Quinary	21000243221
6	Senary	2044403121
8	Octal	121773471
10	Decimal	21493561
12	Duodecimal	72464a1
16	Hexadecimal	147f739
20	Vigesimal	6e6di1
36	Base36	csojd

Cryptographic Hash Functions

md5	da23939397d3893173270e8ec5577dcf
sha1	a9347a71b123b9e14a3aba98f4a63d869f561e45
sha256	518cfad345f656d76c8924f5a85670b9d5e4eff59856e97b6e4b836ebf6760cb
sha512	23ecf0839b45a2fe4a3d4ff685765f82ab5ae88b8e371e1ac8cdb74449488a6cf107057b551e67ccdc190727088f56de76f816b5a30204c166370de899b475ca
ripemd-160	3e285e2ac914e737a3fbf33d4cd5b0e8439bddc8

21493561 as geometric shapes

Circle

Radius = n

Diameter	42987122
Circumference	135048026.67417
Area	1.4513314996254E+15

Sphere

Radius = n

Volume	4.1592376157894E+22
Surface area	5.8053259985017E+15
Circumference	135048026.67417

Square

Length = n

Perimeter	85974244
Area	461973164460721
Diagonal	30396485.469893

Cube

Length = n

Surface area	2771838986764326
Volume	9.9294483906995E+21
Space diagonal	37227939.687581

Equilateral Triangle

Length = n

Perimeter	64480683
Area	2.0004024814484E+14
Altitude	18613969.84379

Triangular Pyramid

Length = n

Surface area	2.0004024814484E+14
Volume	1.1701967150842E+21
Height	10132161.823298