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

20987218 (number)

20987218 is an even 8-digits composite number following 20987217 and preceding 20987219. In scientific notation, it is written as 2.0987218 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 8968176 positive integers (up to 20987218) that are relatively prime to 20987218.

Interesting facts

20987218 has 16 divisors, whose sum is 36083520
The reverse of 20987218 is 81278902
Previous prime number is 4019

Basic properties

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

Name

Name	twenty million nine hundred eighty-seven thousand two hundred eighteen

Notation

Scientific notation	2.0987218 × 10^7
Engineering notation	2.0987218 × 10^6

Prime Factorization of 20987218

Prime Factorization 2 × 7 × 4019 × 373

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	20987218	Product of the distinct prime numbers

The prime factorization of 20987218 is 2 × 7 × 4019 × 373. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 59, 93, 55, 26, 1503, 77, 90080, 94360, 837017, 203073, 9911158, 7168546, 59956480, 19220147, 390458325, 174675517, 3772903296, 8213828664

Basic calculations (n = 20987218)

Multiplication

n×y

n×2	41974436
n×3	62961654
n×4	83948872
n×5	104936090

Division

n÷y

n÷2	10493609
n÷3	6995739.3333333
n÷3	5246804.5
n÷5	4197443.6

Exponentiation

n^y

n²	440463319379524
n³	9.2440997048217E+21
n⁴	1.9400793571883E+29
n⁵	4.071686840661E+36

Nth Root

^y√n

²√n	4581.1808521385
³√n	275.83643077139
⁴√n	67.684421044569
⁵√n	29.133386785715

Divisors of 20987218

1, 2, 7, 14, 373, 746, 2611, 4019, 5222, 8038, 28133, 56266, 1499087, 2998174, 10493609, 20987218

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20987217	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20987218 can be divided by 16 positive divisors. The sum of these divisors (counting 20987218) is 1, the average is 0.0625.

Base conversion 20987218

Base	System	Value
2	Binary	1010000000011110101010010
3	Ternary	1110111021001101
4	Quaternary	1100003311102
5	Quinary	20333042333
6	Senary	2025455014
8	Octal	120036522
10	Decimal	20987218
12	Duodecimal	704146a
16	Hexadecimal	1403d52
20	Vigesimal	6b380i
36	Base36	chtua

Cryptographic Hash Functions

md5	a621741779b667a83bde2e8b5aa86def
sha1	a88fbec66ff908dc4f08ddc573f443fb246b5370
sha256	ca9af9e0990e75e1f5f03200e039f7fda7ed7ed2def0305216bf8ffcc9bd243e
sha512	e7d23fe90ccd33e44bb1e817fc8c610b65ed6029cc36cc79c46a9843992f146ccbc33877e36aae18152007d6ef4f820268d4e69772ea726a8441b63c9f20318f
ripemd-160	d054d78fef2e3f6964d4ddde73dec45d7693559a

20987218 as geometric shapes

Circle

Radius = n

Diameter	41974436
Circumference	131866579.77617
Area	1.3837563283385E+15

Sphere

Radius = n

Volume	3.8721594295626E+22
Surface area	5.5350253133539E+15
Circumference	131866579.77617

Square

Length = n

Perimeter	83948872
Area	440463319379524
Diagonal	29680408.332081

Cube

Length = n

Surface area	2642779916277144
Volume	9.2440997048217E+21
Space diagonal	36350927.885524

Equilateral Triangle

Length = n

Perimeter	62961654
Area	1.9072621200894E+14
Altitude	18175463.942762

Triangular Pyramid

Length = n

Surface area	1.9072621200894E+14
Volume	1.089427597874E+21
Height	9893469.4440269