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

20921387 (number)

20921387 is an odd 8-digits composite number following 20921386 and preceding 20921388. In scientific notation, it is written as 2.0921387 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 20841576 positive integers (up to 20921387) that are relatively prime to 20921387.

Interesting facts

20921387 has 4 divisors, whose sum is 21001200
The reverse of 20921387 is 78312902
Previous prime number is 263

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.0921387 × 10^7
Engineering notation	2.0921387 × 10^6

Prime Factorization of 20921387

Prime Factorization 263 × 79549

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20921387	Product of the distinct prime numbers

The prime factorization of 20921387 is 263 × 79549. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 5, 17, 99, 960, 12, 3368, 4931, 38712, 76056, 258891, 728429, 6455799, 1836747, 14307519, 15412952, 229219815, 322151284, 2300960275, 3843055265

Basic calculations (n = 20921387)

Multiplication

n×y

n×2	41842774
n×3	62764161
n×4	83685548
n×5	104606935

Division

n÷y

n÷2	10460693.5
n÷3	6973795.6666667
n÷3	5230346.75
n÷5	4184277.4

Exponentiation

n^y

n²	437704434003769
n³	9.1573838554088E+21
n⁴	1.9158517154656E+29
n⁵	4.008227517387E+36

Nth Root

^y√n

²√n	4573.9902710872
³√n	275.54772159363
⁴√n	67.631281749551
⁵√n	29.115087162923

Divisors of 20921387

1, 263, 79549, 20921387

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	-20921386	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 20921387 can be divided by 4 positive divisors. The sum of these divisors (counting 20921387) is 1, the average is 0.25.

Base conversion 20921387

Base	System	Value
2	Binary	1001111110011110000101011
3	Ternary	1110100220202012
4	Quaternary	1033303300223
5	Quinary	20323441022
6	Senary	2024230135
8	Octal	117636053
10	Decimal	20921387
12	Duodecimal	700b34b
16	Hexadecimal	13f3c2b
20	Vigesimal	6af397
36	Base36	cgf1n

Cryptographic Hash Functions

md5	9a297df3437503a3a3a9ce41502c2d42
sha1	b69f7a9dc40a089ff946a282ecd4eded6f944ef1
sha256	5df0b90d3a873f67db9f5ba7d89e7e52c213bbe596865838e62a02ba781f7c0c
sha512	cc99c5e28c9776cc0e7fe0ee60d8a8a5774145da27b02d738bb042f3f05b64601f303f4fccdc65ed8369e4fe8e8767db850b05187219c59b5a13e7510ca6f55b
ripemd-160	0498c7403c541f6d9b7fc8cd889c84190ae3bbb7

20921387 as geometric shapes

Circle

Radius = n

Diameter	41842774
Circumference	131452951.40422
Area	1.3750890343099E+15

Sphere

Radius = n

Volume	3.8358359795005E+22
Surface area	5.5003561372397E+15
Circumference	131452951.40422

Square

Length = n

Perimeter	83685548
Area	437704434003769
Diagonal	29587309.239056

Cube

Length = n

Surface area	2626226604022614
Volume	9.1573838554088E+21
Space diagonal	36236905.248811

Equilateral Triangle

Length = n

Perimeter	62764161
Area	1.8953157959818E+14
Altitude	18118452.624406

Triangular Pyramid

Length = n

Surface area	1.8953157959818E+14
Volume	1.0792080370146E+21
Height	9862436.4130187