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

21697985 (number)

21697985 is an odd 8-digits composite number following 21697984 and preceding 21697986. In scientific notation, it is written as 2.1697985 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 16798320 positive integers (up to 21697985) that are relatively prime to 21697985.

Interesting facts

21697985 has 8 divisors, whose sum is 26877696
The reverse of 21697985 is 58979612
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	twenty-one million six hundred ninety-seven thousand nine hundred eighty-five

Notation

Scientific notation	2.1697985 × 10^7
Engineering notation	2.1697985 × 10^6

Prime Factorization of 21697985

Prime Factorization 5 × 31 × 139987

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21697985	Product of the distinct prime numbers

The prime factorization of 21697985 is 5 × 31 × 139987. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 86, 12, 904, 56, 2688, 5863, 81699, 80674, 605521, 33569, 9531850, 1387297, 20246262, 61176411, 715549595, 933137134, 9677690289, 5775029635

Basic calculations (n = 21697985)

Multiplication

n×y

n×2	43395970
n×3	65093955
n×4	86791940
n×5	108489925

Division

n÷y

n÷2	10848992.5
n÷3	7232661.6666667
n÷3	5424496.25
n÷5	4339597

Exponentiation

n^y

n²	470802553060225
n³	1.0215466734262E+22
n⁴	2.2165504396803E+29
n⁵	4.8094678191926E+36

Nth Root

^y√n

²√n	4658.109595104
³√n	278.91581158259
⁴√n	68.250345018205
⁵√n	29.328096791766

Divisors of 21697985

1, 5, 31, 155, 139987, 699935, 4339597, 21697985

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21697984	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21697985 can be divided by 8 positive divisors. The sum of these divisors (counting 21697985) is 1, the average is 0.125.

Base conversion 21697985

Base	System	Value
2	Binary	1010010110001010111000001
3	Ternary	1111211101001002
4	Quaternary	1102301113001
5	Quinary	21023313420
6	Senary	2053021345
8	Octal	122612701
10	Decimal	21697985
12	Duodecimal	7324855
16	Hexadecimal	14b15c1
20	Vigesimal	6fc4j5
36	Base36	cx29t

Cryptographic Hash Functions

md5	06a38cabfd58158001ca8b999c67d2bb
sha1	da4c368888f3032378e3fc408c6116524d92dd7d
sha256	973b582a66712ed5c5492d4b29b2a0a456d5116392d8d46f959855c78a554287
sha512	f1cb3fbe62ea9ad690014eabf7c7852f6b703ef89a82861d3e5ef04400b164ce7554c41aba9c9c8afb0bce9a146aa2dcb9a7b404737eb7262bc65f3532a84597
ripemd-160	e98ef8f7aa04c26216a9c246e5cb679f471cfad7

21697985 as geometric shapes

Circle

Radius = n

Diameter	43395970
Circumference	136332460.5474
Area	1.4790698419853E+15

Sphere

Radius = n

Volume	4.27904469938E+22
Surface area	5.9162793679413E+15
Circumference	136332460.5474

Square

Length = n

Perimeter	86791940
Area	470802553060225
Diagonal	30685584.663168

Cube

Length = n

Surface area	2824815318361350
Volume	1.0215466734262E+22
Space diagonal	37582012.441867

Equilateral Triangle

Length = n

Perimeter	65093955
Area	2.0386348555836E+14
Altitude	18791006.220934

Triangular Pyramid

Length = n

Surface area	2.0386348555836E+14
Volume	1.2039043001304E+21
Height	10228528.221056