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

20187921 (number)

20187921 is an odd 8-digits composite number following 20187920 and preceding 20187922. In scientific notation, it is written as 2.0187921 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 12423312 positive integers (up to 20187921) that are relatively prime to 20187921.

Interesting facts

20187921 has 8 divisors, whose sum is 28987840
The reverse of 20187921 is 12978102
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

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

Notation

Scientific notation	2.0187921 × 10^7
Engineering notation	2.0187921 × 10^6

Prime Factorization of 20187921

Prime Factorization 3 × 13 × 517639

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20187921	Product of the distinct prime numbers

The prime factorization of 20187921 is 3 × 13 × 517639. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 5, 59, 37, 779, 833, 6681, 154, 63399, 62262, 25649, 546648, 7527782, 8300022, 11967113, 66449824, 890843237, 819994228, 6887936583, 9487839122

Basic calculations (n = 20187921)

Multiplication

n×y

n×2	40375842
n×3	60563763
n×4	80751684
n×5	100939605

Division

n÷y

n÷2	10093960.5
n÷3	6729307
n÷3	5046980.25
n÷5	4037584.2

Exponentiation

n^y

n²	407552154302241
n³	8.2276306944335E+21
n⁴	1.660987584764E+29
n⁵	3.3531886143196E+36

Nth Root

^y√n

²√n	4493.0970387918
³√n	272.28927287835
⁴√n	67.030567943229
⁵√n	28.908018189585

Divisors of 20187921

1, 3, 13, 39, 517639, 1552917, 6729307, 20187921

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	-20187920	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 20187921 can be divided by 8 positive divisors. The sum of these divisors (counting 20187921) is 1, the average is 0.125.

Base conversion 20187921

Base	System	Value
2	Binary	1001101000000101100010001
3	Ternary	1101222122121210
4	Quaternary	1031000230101
5	Quinary	20132003141
6	Senary	2000410333
8	Octal	115005421
10	Decimal	20187921
12	Duodecimal	69169a9
16	Hexadecimal	1340b11
20	Vigesimal	6639g1
36	Base36	c0p3l

Cryptographic Hash Functions

md5	6b7994526e266c015acec0791b996334
sha1	23576edc3d9f31d96be37f0cc753a4a4ff75dcf0
sha256	7f5d94b8fbd0949b455b5a4e64f17c3d56e4d03e8547a089d543ede5c67c04d4
sha512	d76bd60d449886ea8f8cc70f93141e1b71f90c043a1643446fbd7c744012c713d3264b2a333d1e65ba17579b173599622e8191538a79d6a1de81ee46f5060163
ripemd-160	e50366492a04a0c3a8bd41bd1e2a4e4746b8318f

20187921 as geometric shapes

Circle

Radius = n

Diameter	40375842
Circumference	126844448.6097
Area	1.2803628539106E+15

Sphere

Radius = n

Volume	3.4463818861443E+22
Surface area	5.1214514156425E+15
Circumference	126844448.6097

Square

Length = n

Perimeter	80751684
Area	407552154302241
Diagonal	28550031.674317

Cube

Length = n

Surface area	2445312925813446
Volume	8.2276306944335E+21
Space diagonal	34966504.871187

Equilateral Triangle

Length = n

Perimeter	60563763
Area	1.7647525949641E+14
Altitude	17483252.435593

Triangular Pyramid

Length = n

Surface area	1.7647525949641E+14
Volume	9.6963557618875E+20
Height	9516677.2247722