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

21497951 (number)

21497951 is an odd 8-digits composite number following 21497950 and preceding 21497952. In scientific notation, it is written as 2.1497951 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 21285000 positive integers (up to 21497951) that are relatively prime to 21497951.

Interesting facts

21497951 has 4 divisors, whose sum is 21710904
The reverse of 21497951 is 15979412
Previous prime number is 101

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

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

Notation

Scientific notation	2.1497951 × 10^7
Engineering notation	2.1497951 × 10^6

Prime Factorization of 21497951

Prime Factorization 101 × 212851

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21497951	Product of the distinct prime numbers

The prime factorization of 21497951 is 101 × 212851. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 8, 97, 5, 207, 157, 6631, 5246, 89540, 76959, 599007, 352213, 8601285, 4194924, 56070581, 46670698, 784335486, 210888141, 1674748254, 9970089220

Basic calculations (n = 21497951)

Multiplication

n×y

n×2	42995902
n×3	64493853
n×4	85991804
n×5	107489755

Division

n÷y

n÷2	10748975.5
n÷3	7165983.6666667
n÷3	5374487.75
n÷5	4299590.2

Exponentiation

n^y

n²	462161897198401
n³	9.9355338200383E+21
n⁴	2.1359361922203E+29
n⁵	4.5918251599478E+36

Nth Root

^y√n

²√n	4636.5882931311
³√n	278.05605463526
⁴√n	68.09249806793
⁵√n	29.273821053983

Divisors of 21497951

1, 101, 212851, 21497951

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	-21497950	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 21497951 can be divided by 4 positive divisors. The sum of these divisors (counting 21497951) is 1, the average is 0.25.

Base conversion 21497951

Base	System	Value
2	Binary	1010010000000100001011111
3	Ternary	1111110012122102
4	Quaternary	1102000201133
5	Quinary	21000413301
6	Senary	2044435315
8	Octal	122004137
10	Decimal	21497951
12	Duodecimal	7248b3b
16	Hexadecimal	148085f
20	Vigesimal	6e74hb
36	Base36	csrxb

Cryptographic Hash Functions

md5	6aa41c74d5eede59c6160d7056fcff42
sha1	17934adbbb12c0e7045800c889eba3692dc76d2b
sha256	63c56cfba578764c17044263a60fae5576f135a7801e282fc33aed5841ea9a58
sha512	02a14d48eebd6cd7eabe37bbbd02e21805e013253323958ba9bf97bdb057d7dee5081b24e83d2bfb9f81319e5c6eda227a8ec560b1b2f6e3137332a6dc493288
ripemd-160	2a3be3312894228af4be9f16cb6927824b6b6a8d

21497951 as geometric shapes

Circle

Radius = n

Diameter	42995902
Circumference	135075609.85767
Area	1.4519244210076E+15

Sphere

Radius = n

Volume	4.16178667447E+22
Surface area	5.8076976840305E+15
Circumference	135075609.85767

Square

Length = n

Perimeter	85991804
Area	462161897198401
Diagonal	30402693.867432

Cube

Length = n

Surface area	2772971383190406
Volume	9.9355338200383E+21
Space diagonal	37235543.390626

Equilateral Triangle

Length = n

Perimeter	64493853
Area	2.0012197181751E+14
Altitude	18617771.695313

Triangular Pyramid

Length = n

Surface area	2.0012197181751E+14
Volume	1.1709138898096E+21
Height	10134231.289144