21387957, twenty-one million three hundred eighty-seven thousand nine hundred fifty-seven: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

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

Interesting facts

21387957 has 8 divisors, whose sum is 28538976
The reverse of 21387957 is 75978312
Previous prime number is 3187

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	twenty-one million three hundred eighty-seven thousand nine hundred fifty-seven

Notation

Scientific notation	2.1387957 × 10^7
Engineering notation	2.1387957 × 10^6

Prime Factorization of 21387957

Prime Factorization 3 × 3187 × 2237

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21387957	Product of the distinct prime numbers

The prime factorization of 21387957 is 3 × 3187 × 2237. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 3, 64, 3, 515, 154, 4924, 5695, 89555, 17119, 928271, 575493, 9785497, 8527373, 88258333, 86975383, 948968581, 3422211, 1629978927, 122422430

Basic calculations (n = 21387957)

Multiplication

n×y

n×2	42775914
n×3	64163871
n×4	85551828
n×5	106939785

Division

n÷y

n÷2	10693978.5
n÷3	7129319
n÷3	5346989.25
n÷5	4277591.4

Exponentiation

n^y

n²	457444704633849
n³	9.7838076725865E+21
n⁴	2.0925565779755E+29
n⁵	4.4755510109807E+36

Nth Root

^y√n

²√n	4624.7115585731
³√n	277.58102008917
⁴√n	68.005231847066
⁵√n	29.243803729086

Divisors of 21387957

1, 3, 2237, 3187, 6711, 9561, 7129319, 21387957

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	-21387956	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 21387957 can be divided by 8 positive divisors. The sum of these divisors (counting 21387957) is 1, the average is 0.125.

Base conversion 21387957

Base	System	Value
2	Binary	1010001100101101010110101
3	Ternary	1111020121202120
4	Quaternary	1101211222311
5	Quinary	20433403312
6	Senary	2042230153
8	Octal	121455265
10	Decimal	21387957
12	Duodecimal	71b5359
16	Hexadecimal	1465ab5
20	Vigesimal	6dd9hh
36	Base36	cqf1x

Cryptographic Hash Functions

md5	cf98ddd1ad2bccd31ee5f7b1501b837b
sha1	35a4852018689fb60b30a532b810c50b552e6d0a
sha256	c958d8e5e8e336b56c7610b8bbc30aae455d3df2b887c7084eaf94a1c74a2b8d
sha512	1b3c57c0b84166f2d05d429128031a59f9554054e8ca3d8bceecb098655199e7471387d05c858cf389aad28cf6686dafd221e58b00a8a880fb7bfa04a4e30d18
ripemd-160	b95a161985b12f655ccc135a134f774efd357e15

21387957 as geometric shapes

Circle

Radius = n

Diameter	42775914
Circumference	134384497.17299
Area	1.4371049235013E+15

Sphere

Radius = n

Volume	4.0982317744444E+22
Surface area	5.748419694005E+15
Circumference	134384497.17299

Square

Length = n

Perimeter	85551828
Area	457444704633849
Diagonal	30247138.860853

Cube

Length = n

Surface area	2744668227803094
Volume	9.7838076725865E+21
Space diagonal	37045028.194098

Equilateral Triangle

Length = n

Perimeter	64163871
Area	1.9807936751979E+14
Altitude	18522514.097049

Triangular Pyramid

Length = n

Surface area	1.9807936751979E+14
Volume	1.1530327918518E+21
Height	10082379.620284