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

21987265 (number)

21987265 is an odd 8-digits composite number following 21987264 and preceding 21987266. In scientific notation, it is written as 2.1987265 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 17589808 positive integers (up to 21987265) that are relatively prime to 21987265.

Interesting facts

21987265 has 4 divisors, whose sum is 26384724
The reverse of 21987265 is 56278912
Previous prime number is 5

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 eighty-seven thousand two hundred sixty-five

Notation

Scientific notation	2.1987265 × 10^7
Engineering notation	2.1987265 × 10^6

Prime Factorization of 21987265

Prime Factorization 5 × 4397453

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21987265	Product of the distinct prime numbers

The prime factorization of 21987265 is 5 × 4397453. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 3, 45, 49, 69, 950, 7432, 9074, 40717, 99149, 697828, 657603, 3409815, 4107847, 33618853, 75111222, 480329078, 896494115, 7039066699, 8030644412

Basic calculations (n = 21987265)

Multiplication

n×y

n×2	43974530
n×3	65961795
n×4	87949060
n×5	109936325

Division

n÷y

n÷2	10993632.5
n÷3	7329088.3333333
n÷3	5496816.25
n÷5	4397453

Exponentiation

n^y

n²	483439822180225
n³	1.0629519481829E+22
n⁴	2.3371406166965E+29
n⁵	5.1387330081569E+36

Nth Root

^y√n

²√n	4689.0580077453
³√n	280.14985600724
⁴√n	68.47669682268
⁵√n	29.405884165893

Divisors of 21987265

1, 5, 4397453, 21987265

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	-21987264	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 21987265 can be divided by 4 positive divisors. The sum of these divisors (counting 21987265) is 1, the average is 0.25.

Base conversion 21987265

Base	System	Value
2	Binary	1010011110111111111000001
3	Ternary	1112101001212011
4	Quaternary	1103313333001
5	Quinary	21112043030
6	Senary	2103132521
8	Octal	123677701
10	Decimal	21987265
12	Duodecimal	7444141
16	Hexadecimal	14f7fc1
20	Vigesimal	6h8835
36	Base36	d39hd

Cryptographic Hash Functions

md5	a03d4c6a1149e4434a21f9973d23ab4b
sha1	94f86712743dab0e0bda881b81c275716f131f1d
sha256	3a8e7fa579456dfebeadbb565157bac69be57362a51ae285284821183d9a3e26
sha512	8a2fbd15098dfc0e23bb8df8fb5406bbab7c5c969fd04366478edee5e093bff7b18bfb91c87ce0c466fa12733cba52b8d40ef5d341b0e07dd1b5dfbf39774aed
ripemd-160	5b779270d561549f593fed6e55e8ebc13a092d76

21987265 as geometric shapes

Circle

Radius = n

Diameter	43974530
Circumference	138150060.39306
Area	1.5187709938142E+15

Sphere

Radius = n

Volume	4.4524827087073E+22
Surface area	6.0750839752566E+15
Circumference	138150060.39306

Square

Length = n

Perimeter	87949060
Area	483439822180225
Diagonal	31094688.362491

Cube

Length = n

Surface area	2900638933081350
Volume	1.0629519481829E+22
Space diagonal	38083060.099481

Equilateral Triangle

Length = n

Perimeter	65961795
Area	2.0933558360455E+14
Altitude	19041530.04974

Triangular Pyramid

Length = n

Surface area	2.0933558360455E+14
Volume	1.2527008843927E+21
Height	10364896.12083