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

21397913 (number)

21397913 is an odd 8-digits composite number following 21397912 and preceding 21397914. In scientific notation, it is written as 2.1397913 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 21322020 positive integers (up to 21397913) that are relatively prime to 21397913.

Interesting facts

21397913 has 4 divisors, whose sum is 21473808
The reverse of 21397913 is 31979312
Previous prime number is 283

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	twenty-one million three hundred ninety-seven thousand nine hundred thirteen

Notation

Scientific notation	2.1397913 × 10^7
Engineering notation	2.1397913 × 10^6

Prime Factorization of 21397913

Prime Factorization 283 × 75611

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21397913	Product of the distinct prime numbers

The prime factorization of 21397913 is 283 × 75611. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 30, 93, 919, 874, 4174, 5599, 73243, 84962, 193648, 341419, 8281158, 9810314, 37749432, 64104300, 105868736, 942982501, 866718029, 86915090

Basic calculations (n = 21397913)

Multiplication

n×y

n×2	42795826
n×3	64193739
n×4	85591652
n×5	106989565

Division

n÷y

n÷2	10698956.5
n÷3	7132637.6666667
n÷3	5349478.25
n÷5	4279582.6

Exponentiation

n^y

n²	457870680755569
n³	9.7974769920584E+21
n⁴	2.0964556029557E+29
n⁵	4.4859774600408E+36

Nth Root

^y√n

²√n	4625.7878247927
³√n	277.62408432283
⁴√n	68.013144500109
⁵√n	29.246525794716

Divisors of 21397913

1, 283, 75611, 21397913

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	-21397912	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 21397913 can be divided by 4 positive divisors. The sum of these divisors (counting 21397913) is 1, the average is 0.25.

Base conversion 21397913

Base	System	Value
2	Binary	1010001101000000110011001
3	Ternary	1111021010102022
4	Quaternary	1101220012121
5	Quinary	20434213123
6	Senary	2042344225
8	Octal	121500631
10	Decimal	21397913
12	Duodecimal	71bb075
16	Hexadecimal	1468199
20	Vigesimal	6deefd
36	Base36	cqmqh

Cryptographic Hash Functions

md5	4631df0c990cd75bb5700b46c1c441aa
sha1	f26d436f57083a5a06bffefa5a03be317a9c4040
sha256	89ea46fc7142ee972cde200d41aac4c683508967de3d65714ea241985c7a41f4
sha512	73299022d28be39bbaaf770a51f8325329426c4f17c7c19ec37638bdfda7fb727d0cca2cc34d56daef0f70d24889b32cfba0aa12d4e690d2b17107d4f35c6421
ripemd-160	2a1573d5003b356304c9c51d97fdbb96859e5990

21397913 as geometric shapes

Circle

Radius = n

Diameter	42795826
Circumference	134447052.56591
Area	1.4384431669559E+15

Sphere

Radius = n

Volume	4.1039575655954E+22
Surface area	5.7537726678234E+15
Circumference	134447052.56591

Square

Length = n

Perimeter	85591652
Area	457870680755569
Diagonal	30261218.77108

Cube

Length = n

Surface area	2747224084533414
Volume	9.7974769920584E+21
Space diagonal	37062272.491939

Equilateral Triangle

Length = n

Perimeter	64193739
Area	1.982638205912E+14
Altitude	18531136.245969

Triangular Pyramid

Length = n

Surface area	1.982638205912E+14
Volume	1.1546437366006E+21
Height	10087072.923693