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

21904987 (number)

21904987 is an odd 8-digits composite number following 21904986 and preceding 21904988. In scientific notation, it is written as 2.1904987 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 20219976 positive integers (up to 21904987) that are relatively prime to 21904987.

Interesting facts

21904987 has 4 divisors, whose sum is 23590000
The reverse of 21904987 is 78940912
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

Name	twenty-one million nine hundred four thousand nine hundred eighty-seven

Notation

Scientific notation	2.1904987 × 10^7
Engineering notation	2.1904987 × 10^6

Prime Factorization of 21904987

Prime Factorization 13 × 1684999

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21904987	Product of the distinct prime numbers

The prime factorization of 21904987 is 13 × 1684999. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 3, 61, 98, 572, 352, 9438, 7051, 90676, 73583, 124121, 895727, 1529874, 1228507, 5319868, 38603937, 299748412, 209596582, 4340652079, 9062596737

Basic calculations (n = 21904987)

Multiplication

n×y

n×2	43809974
n×3	65714961
n×4	87619948
n×5	109524935

Division

n÷y

n÷2	10952493.5
n÷3	7301662.3333333
n÷3	5476246.75
n÷5	4380997.4

Exponentiation

n^y

n²	479828455470169
n³	1.0510636079304E+22
n⁴	2.3023534667889E+29
n⁵	5.0433022759415E+36

Nth Root

^y√n

²√n	4680.276380728
³√n	279.7999719327
⁴√n	68.412545492241
⁵√n	29.383843343567

Divisors of 21904987

1, 13, 1684999, 21904987

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	-21904986	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 21904987 can be divided by 4 positive divisors. The sum of these divisors (counting 21904987) is 1, the average is 0.25.

Base conversion 21904987

Base	System	Value
2	Binary	1010011100011111001011011
3	Ternary	1112012212222211
4	Quaternary	1103203321123
5	Quinary	21101424422
6	Senary	2101255551
8	Octal	123437133
10	Decimal	21904987
12	Duodecimal	74045b7
16	Hexadecimal	14e3e5b
20	Vigesimal	6gi297
36	Base36	d1hzv

Cryptographic Hash Functions

md5	38d9d709bbd5cc9697afc1d6a9935609
sha1	5d6fd59b4f42b7d023bca21bc0f6cc316591eb2d
sha256	fa175dc771f28a89ba13bb0154a7c34b2c532605ef808a77c0b50f5534715896
sha512	8e9511f0f286c01d2c6385f87e5ff7333b8225009482e26922057ed0b59a372be710ae4b96c8bcb6b6a36ccbfdda75e0c5fd4fb0e3d5fb95221eb20f569af1f3
ripemd-160	f22435fb7cf3cea5695f3ea672b752238eacdafb

21904987 as geometric shapes

Circle

Radius = n

Diameter	43809974
Circumference	137633092.47236
Area	1.5074255506884E+15

Sphere

Radius = n

Volume	4.4026849455064E+22
Surface area	6.0297022027537E+15
Circumference	137633092.47236

Square

Length = n

Perimeter	87619948
Area	479828455470169
Diagonal	30978329.699006

Cube

Length = n

Surface area	2878970732821014
Volume	1.0510636079304E+22
Space diagonal	37940550.423136

Equilateral Triangle

Length = n

Perimeter	65714961
Area	2.0777181594791E+14
Altitude	18970275.211568

Triangular Pyramid

Length = n

Surface area	2.0777181594791E+14
Volume	1.2386903410433E+21
Height	10326109.899669