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

21387958 (number)

21387958 is an even 8-digits composite number following 21387957 and preceding 21387959. In scientific notation, it is written as 2.1387958 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 10131120 positive integers (up to 21387958) that are relatively prime to 21387958.

Interesting facts

21387958 has 8 divisors, whose sum is 33770520
The reverse of 21387958 is 85978312
Previous prime number is 19

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7

Name

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

Notation

Scientific notation	2.1387958 × 10^7
Engineering notation	2.1387958 × 10^6

Prime Factorization of 21387958

Prime Factorization 2 × 19 × 562841

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21387958	Product of the distinct prime numbers

The prime factorization of 21387958 is 2 × 19 × 562841. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 10, 50, 96, 125, 276, 5891, 20, 78536, 89753, 883025, 967285, 9257883, 7590108, 70280152, 64167987, 612840273, 169217387, 3265004471, 5647324145

Basic calculations (n = 21387958)

Multiplication

n×y

n×2	42775916
n×3	64163874
n×4	85551832
n×5	106939790

Division

n÷y

n÷2	10693979
n÷3	7129319.3333333
n÷3	5346989.5
n÷5	4277591.6

Exponentiation

n^y

n²	457444747409764
n³	9.7838090449206E+21
n⁴	2.0925569693278E+29
n⁵	4.4755520572591E+36

Nth Root

^y√n

²√n	4624.711666688
³√n	277.5810244153
⁴√n	68.005232641967
⁵√n	29.243804002547

Divisors of 21387958

1, 2, 19, 38, 562841, 1125682, 10693979, 21387958

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	-21387957	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 21387958 can be divided by 8 positive divisors. The sum of these divisors (counting 21387958) is 1, the average is 0.125.

Base conversion 21387958

Base	System	Value
2	Binary	1010001100101101010110110
3	Ternary	1111020121202121
4	Quaternary	1101211222312
5	Quinary	20433403313
6	Senary	2042230154
8	Octal	121455266
10	Decimal	21387958
12	Duodecimal	71b535a
16	Hexadecimal	1465ab6
20	Vigesimal	6dd9hi
36	Base36	cqf1y

Cryptographic Hash Functions

md5	300c43a9e27625f6265e2904e8828c68
sha1	870f62bba2afe0b67d1be5cf26030f9837370dd3
sha256	dc4d919aec0d4d6bc85a54375aecc6404953ac4f8232c8f04d91386a23de220c
sha512	536d04ba5019851ee366e464d55b09aeaf6cdd2832ff1a6936273a30c5861a606ee5f6d9cd409f00326626cdcd730d0515726ab1009f4b7122f61a6a86aaeed1
ripemd-160	dc05723c6f816adb24e8ef9c03242ba22b9f1561

21387958 as geometric shapes

Circle

Radius = n

Diameter	42775916
Circumference	134384503.45617
Area	1.4371050578858E+15

Sphere

Radius = n

Volume	4.0982323492864E+22
Surface area	5.748420231543E+15
Circumference	134384503.45617

Square

Length = n

Perimeter	85551832
Area	457444747409764
Diagonal	30247140.275066

Cube

Length = n

Surface area	2744668484458584
Volume	9.7838090449206E+21
Space diagonal	37045029.926149

Equilateral Triangle

Length = n

Perimeter	64163874
Area	1.9807938604231E+14
Altitude	18522514.963075

Triangular Pyramid

Length = n

Surface area	1.9807938604231E+14
Volume	1.1530329535829E+21
Height	10082380.091689