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

21308981 (number)

21308981 is an odd 8-digits prime number following 21308980 and preceding 21308982. In scientific notation, it is written as 2.1308981 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 21308980 positive integers (up to 21308981) that are relatively prime to 21308981.

Interesting facts

21308981 has 2 divisors, whose sum is 21308982
The reverse of 21308981 is 18980312
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million three hundred eight thousand nine hundred eighty-one

Notation

Scientific notation	2.1308981 × 10^7
Engineering notation	2.1308981 × 10^6

Prime Factorization of 21308981

Prime Factorization 21308981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21308981	Product of the distinct prime numbers

The prime factorization of 21308981 is 21308981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 5, 73, 55, 884, 330, 5910, 3845, 21999, 29498, 163166, 643735, 9358152, 3697514, 83261545, 63520377, 705453927, 733590836, 4654781700, 8363731050

Basic calculations (n = 21308981)

Multiplication

n×y

n×2	42617962
n×3	63926943
n×4	85235924
n×5	106544905

Division

n÷y

n÷2	10654490.5
n÷3	7102993.6666667
n÷3	5327245.25
n÷5	4261796.2

Exponentiation

n^y

n²	454072671258361
n³	9.6758259244637E+21
n⁴	2.061819907837E+29
n⁵	4.3935281241521E+36

Nth Root

^y√n

²√n	4616.165183353
³√n	277.2389385292
⁴√n	67.942366630498
⁵√n	29.222174945368

Divisors of 21308981

1, 21308981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21308982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10654491	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4616.165291668	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999061429	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21308981 can be divided by 2 positive divisors. The sum of these divisors (counting 21308981) is 21308982, the average is 10654491.

Base conversion 21308981

Base	System	Value
2	Binary	1010001010010011000110101
3	Ternary	1111002121102112
4	Quaternary	1101102120311
5	Quinary	20423341411
6	Senary	2040420405
8	Octal	121223065
10	Decimal	21308981
12	Duodecimal	7177705
16	Hexadecimal	1452635
20	Vigesimal	6d3c91
36	Base36	coq45

Cryptographic Hash Functions

md5	25e9306660b3fa8f1222a28a4402ea02
sha1	6c5ca46456fd261dc4278a72aa67df6a8c9ad7c0
sha256	ff7b3a1a26ad178a15e2c7c9e39a3e987a5946947ff69fc49b9d5fcd027c6adc
sha512	7c6d2ec8f3929ec7c57702e0b048198e943403ea74f90f7fab22de638d379a145a82724548549b43e2e43ab2846a9f47fc8ba31d9d797365bb5579838c0c6511
ripemd-160	33c87594461c07b9a994ab4810636c5d4342f207

21308981 as geometric shapes

Circle

Radius = n

Diameter	42617962
Circumference	133888276.33017
Area	1.4265113682212E+15

Sphere

Radius = n

Volume	4.0530004855612E+22
Surface area	5.7060454728846E+15
Circumference	133888276.33017

Square

Length = n

Perimeter	85235924
Area	454072671258361
Diagonal	30135449.930551

Cube

Length = n

Surface area	2724436027550166
Volume	9.6758259244637E+21
Space diagonal	36908237.74952

Equilateral Triangle

Length = n

Perimeter	63926943
Area	1.96619234237E+14
Altitude	18454118.87476

Triangular Pyramid

Length = n

Surface area	1.96619234237E+14
Volume	1.1403070207948E+21
Height	10045149.97685