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

21539987 (number)

21539987 is an odd 8-digits composite number following 21539986 and preceding 21539988. In scientific notation, it is written as 2.1539987 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 18427392 positive integers (up to 21539987) that are relatively prime to 21539987.

Interesting facts

21539987 has 8 divisors, whose sum is 24664416
The reverse of 21539987 is 78993512
Previous prime number is 577

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty-one million five hundred thirty-nine thousand nine hundred eighty-seven

Notation

Scientific notation	2.1539987 × 10^7
Engineering notation	2.1539987 × 10^6

Prime Factorization of 21539987

Prime Factorization 7 × 577 × 5333

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21539987	Product of the distinct prime numbers

The prime factorization of 21539987 is 7 × 577 × 5333. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 5, 39, 50, 880, 312, 8751, 6069, 78101, 23329, 123483, 981349, 7975563, 3500556, 81533450, 44822285, 127155888, 49762597, 6167601644, 733829983

Basic calculations (n = 21539987)

Multiplication

n×y

n×2	43079974
n×3	64619961
n×4	86159948
n×5	107699935

Division

n÷y

n÷2	10769993.5
n÷3	7179995.6666667
n÷3	5384996.75
n÷5	4307997.4

Exponentiation

n^y

n²	463971039960169
n³	9.9939301691185E+21
n⁴	2.1526912592172E+29
n⁵	4.6368941738552E+36

Nth Root

^y√n

²√n	4641.1191538249
³√n	278.23716886176
⁴√n	68.125759840349
⁵√n	29.285260218619

Divisors of 21539987

1, 7, 577, 4039, 5333, 37331, 3077141, 21539987

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	-21539986	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 21539987 can be divided by 8 positive divisors. The sum of these divisors (counting 21539987) is 1, the average is 0.125.

Base conversion 21539987

Base	System	Value
2	Binary	1010010001010110010010011
3	Ternary	1111112100022022
4	Quaternary	1102022302103
5	Quinary	21003234422
6	Senary	2045402055
8	Octal	122126223
10	Decimal	21539987
12	Duodecimal	726932b
16	Hexadecimal	148ac93
20	Vigesimal	6ec9j7
36	Base36	ctocz

Cryptographic Hash Functions

md5	376ea4c5bc5afc913b3c5f12c8f2281e
sha1	05224aeb2ba49dbf0aeb18ebcf8c1e1b142b7025
sha256	a3297170bc2d4751bd349134bf84f0dc47cd555d92d74c6d9517ab060cc08b99
sha512	2da862339400f4f3f0f988500b9efc27f28eee3bb74271f2fb45d01e664a879b173868122da19e303ad5d24efde6e579b64fa30247686c8363e4282e9fd70425
ripemd-160	44c3adffa037f52b262b5255ce953707b7681d41

21539987 as geometric shapes

Circle

Radius = n

Diameter	43079974
Circumference	135339729.83524
Area	1.4576080106173E+15

Sphere

Radius = n

Volume	4.1862476799723E+22
Surface area	5.8304320424691E+15
Circumference	135339729.83524

Square

Length = n

Perimeter	86159948
Area	463971039960169
Diagonal	30462141.74874

Cube

Length = n

Surface area	2783826239761014
Volume	9.9939301691185E+21
Space diagonal	37308351.878373

Equilateral Triangle

Length = n

Perimeter	64619961
Area	2.009053536129E+14
Altitude	18654175.939187

Triangular Pyramid

Length = n

Surface area	2.009053536129E+14
Volume	1.1777959655481E+21
Height	10154047.24958