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

21698981 (number)

21698981 is an odd 8-digits composite number following 21698980 and preceding 21698982. In scientific notation, it is written as 2.1698981 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 21343200 positive integers (up to 21698981) that are relatively prime to 21698981.

Interesting facts

21698981 has 4 divisors, whose sum is 22054764
The reverse of 21698981 is 18989612
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty-one million six hundred ninety-eight thousand nine hundred eighty-one

Notation

Scientific notation	2.1698981 × 10^7
Engineering notation	2.1698981 × 10^6

Prime Factorization of 21698981

Prime Factorization 61 × 355721

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21698981	Product of the distinct prime numbers

The prime factorization of 21698981 is 61 × 355721. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 30, 31, 327, 940, 1744, 9198, 54265, 14194, 473107, 187932, 5993380, 6547915, 85197225, 11665504, 186318782, 263353169, 5416241287, 5789325882

Basic calculations (n = 21698981)

Multiplication

n×y

n×2	43397962
n×3	65096943
n×4	86795924
n×5	108494905

Division

n÷y

n÷2	10849490.5
n÷3	7232993.6666667
n÷3	5424745.25
n÷5	4339796.2

Exponentiation

n^y

n²	470845776438361
n³	1.0216873556866E+22
n⁴	2.2169574518984E+29
n⁵	4.8105717626552E+36

Nth Root

^y√n

²√n	4658.2165041999
³√n	278.92007919696
⁴√n	68.251128226571
⁵√n	29.328366035644

Divisors of 21698981

1, 61, 355721, 21698981

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	-21698980	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 21698981 can be divided by 4 positive divisors. The sum of these divisors (counting 21698981) is 1, the average is 0.25.

Base conversion 21698981

Base	System	Value
2	Binary	1010010110001100110100101
3	Ternary	1111211102101222
4	Quaternary	1102301212211
5	Quinary	21023331411
6	Senary	2053030125
8	Octal	122614645
10	Decimal	21698981
12	Duodecimal	7325345
16	Hexadecimal	14b19a5
20	Vigesimal	6fc791
36	Base36	cx31h

Cryptographic Hash Functions

md5	94229690eec6e65d3a65548d9751c4e4
sha1	92dd8aad0c22f59a89be7999cfcb7a2d10ecc7ba
sha256	f9ad8be14d2ade2e82a937ac5207efeb60519f0cafa06a0de4e5bd9dd4a64d29
sha512	20fe07a38bc57c451b24572113844d173afb6768e2875211928d8a892b32564556371cd9052cb129348c0135f25d6a437ca0b028250ab06ad0b39eb3551b6db0
ripemd-160	9907d3432141c36a0ae87cccf073bba947c4bfc7

21698981 as geometric shapes

Circle

Radius = n

Diameter	43397962
Circumference	136338718.59997
Area	1.4792056322325E+15

Sphere

Radius = n

Volume	4.2796339878542E+22
Surface area	5.9168225289301E+15
Circumference	136338718.59997

Square

Length = n

Perimeter	86795924
Area	470845776438361
Diagonal	30686993.219876

Cube

Length = n

Surface area	2825074658630166
Volume	1.0216873556866E+22
Space diagonal	37583737.564472

Equilateral Triangle

Length = n

Perimeter	65096943
Area	2.0388220183011E+14
Altitude	18791868.782236

Triangular Pyramid

Length = n

Surface area	2.0388220183011E+14
Volume	1.2040700957643E+21
Height	10228997.739959