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

20921788 (number)

20921788 is an even 8-digits composite number following 20921787 and preceding 20921789. In scientific notation, it is written as 2.0921788 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 6 positive divisors. There are 10460892 positive integers (up to 20921788) that are relatively prime to 20921788.

Interesting facts

20921788 has 6 divisors, whose sum is 36613136
The reverse of 20921788 is 88712902
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	2.0921788 × 10^7
Engineering notation	2.0921788 × 10^6

Prime Factorization of 20921788

Prime Factorization 2 × 2 × 5230447

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10460894	Product of the distinct prime numbers

The prime factorization of 20921788 is 2 × 2 × 5230447. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 79, 36, 750, 511, 7038, 7210, 53135, 20200, 788570, 371314, 1589209, 572596, 98420601, 35598184, 711804759, 612083721, 6222620780, 7248858279

Basic calculations (n = 20921788)

Multiplication

n×y

n×2	41843576
n×3	62765364
n×4	83687152
n×5	104608940

Division

n÷y

n÷2	10460894
n÷3	6973929.3333333
n÷3	5230447
n÷5	4184357.6

Exponentiation

n^y

n²	437721213116944
n³	9.1579104239355E+21
n⁴	1.9159986041257E+29
n⁵	4.0086116603814E+36

Nth Root

^y√n

²√n	4574.0341056883
³√n	275.54948205579
⁴√n	67.631605819235
⁵√n	29.11519877178

Divisors of 20921788

1, 2, 4, 5230447, 10460894, 20921788

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20921787	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921788 can be divided by 6 positive divisors. The sum of these divisors (counting 20921788) is 1, the average is 0.16666666666667.

Base conversion 20921788

Base	System	Value
2	Binary	1001111110011110110111100
3	Ternary	1110100221022001
4	Quaternary	1033303312330
5	Quinary	20323444123
6	Senary	2024232044
8	Octal	117636674
10	Decimal	20921788
12	Duodecimal	700b624
16	Hexadecimal	13f3dbc
20	Vigesimal	6af498
36	Base36	cgfcs

Cryptographic Hash Functions

md5	54d578aeca8e3a606287059147516128
sha1	9c288330aa96a21f63a2a185793e45add6baa0cf
sha256	fa444104b22f2fb08418eefbf7ae9fd98d38c70cb8d17a88bb4a1fb0116d9e10
sha512	7d8b2a37e51dd94354b7b784c87e36c7f39277de55f72397ac37c9d72f32de6d2f68119bc4baf9907426845d3f253208cd2aa4e1aa369bf7e9d75970d3cf6764
ripemd-160	2fd884d43a00fadf4b56616a3a1f3427cd3f8e01

20921788 as geometric shapes

Circle

Radius = n

Diameter	41843576
Circumference	131455470.96153
Area	1.3751417474486E+15

Sphere

Radius = n

Volume	3.8360565480092E+22
Surface area	5.5005669897944E+15
Circumference	131455470.96153

Square

Length = n

Perimeter	83687152
Area	437721213116944
Diagonal	29587876.338695

Cube

Length = n

Surface area	2626327278701664
Volume	9.1579104239355E+21
Space diagonal	36237599.801185

Equilateral Triangle

Length = n

Perimeter	62765364
Area	1.8953884516731E+14
Altitude	18118799.900592

Triangular Pyramid

Length = n

Surface area	1.8953884516731E+14
Volume	1.0792700937106E+21
Height	9862625.4462316