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

21097921 (number)

21097921 is an odd 8-digits composite number following 21097920 and preceding 21097922. In scientific notation, it is written as 2.1097921 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 19474992 positive integers (up to 21097921) that are relatively prime to 21097921.

Interesting facts

21097921 has 4 divisors, whose sum is 22720852
The reverse of 21097921 is 12979012
Previous prime number is 13

Basic properties

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

Name

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

Notation

Scientific notation	2.1097921 × 10^7
Engineering notation	2.1097921 × 10^6

Prime Factorization of 21097921

Prime Factorization 13 × 1622917

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21097921	Product of the distinct prime numbers

The prime factorization of 21097921 is 13 × 1622917. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 7, 16, 68, 815, 986, 4709, 762, 97095, 67757, 837266, 540796, 1743746, 8282183, 98431393, 59413854, 748020389, 978263318, 3355061701, 1310183932

Basic calculations (n = 21097921)

Multiplication

n×y

n×2	42195842
n×3	63293763
n×4	84391684
n×5	105489605

Division

n÷y

n÷2	10548960.5
n÷3	7032640.3333333
n÷3	5274480.25
n÷5	4219584.2

Exponentiation

n^y

n²	445122270522241
n³	9.3911544988189E+21
n⁴	1.9813383571488E+29
n⁵	4.1802120133394E+36

Nth Root

^y√n

²√n	4593.2473262388
³√n	276.32057286639
⁴√n	67.773500176978
⁵√n	29.164056596094

Divisors of 21097921

1, 13, 1622917, 21097921

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	-21097920	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 21097921 can be divided by 4 positive divisors. The sum of these divisors (counting 21097921) is 1, the average is 0.25.

Base conversion 21097921

Base	System	Value
2	Binary	1010000011110110111000001
3	Ternary	1110200212220111
4	Quaternary	1100132313001
5	Quinary	20400113141
6	Senary	2032111321
8	Octal	120366701
10	Decimal	21097921
12	Duodecimal	7095541
16	Hexadecimal	141edc1
20	Vigesimal	6bh4g1
36	Base36	ck79d

Cryptographic Hash Functions

md5	cef06013b43ecfaeb5f7ca35614d7c73
sha1	d00899e0017c1f17bea88b53f78e524e9db6c28e
sha256	041eb7a98995bde175a8320ef738507bfccaeca859f11174d71e7105b4afa250
sha512	8b646abaed70ef8cc7b3508087c444108ee5b402b1ebc0428c19b47a01faa6e713e76d2406c3b5b1431d3290f74156bbd1a3672327b6574d9d73e72f2b75ba0f
ripemd-160	27470a6694265f8ec520ccb506fc8e63b58565f2

21097921 as geometric shapes

Circle

Radius = n

Diameter	42195842
Circumference	132562147.23924
Area	1.3983928550219E+15

Sphere

Radius = n

Volume	3.9337575976288E+22
Surface area	5.5935714200875E+15
Circumference	132562147.23924

Square

Length = n

Perimeter	84391684
Area	445122270522241
Diagonal	29836966.016076

Cube

Length = n

Surface area	2670733623133446
Volume	9.3911544988189E+21
Space diagonal	36542671.106074

Equilateral Triangle

Length = n

Perimeter	63293763
Area	1.9274359703123E+14
Altitude	18271335.553037

Triangular Pyramid

Length = n

Surface area	1.9274359703123E+14
Volume	1.1067581715476E+21
Height	9945655.338692