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

20138981 (number)

20138981 is an odd 8-digits prime number following 20138980 and preceding 20138982. In scientific notation, it is written as 2.0138981 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 20138980 positive integers (up to 20138981) that are relatively prime to 20138981.

Interesting facts

20138981 has 2 divisors, whose sum is 20138982
The reverse of 20138981 is 18983102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.0138981 × 10^7
Engineering notation	2.0138981 × 10^6

Prime Factorization of 20138981

Prime Factorization 20138981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20138981	Product of the distinct prime numbers

The prime factorization of 20138981 is 20138981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 2, 17, 68, 525, 535, 9226, 4577, 37677, 224, 456714, 719565, 2815681, 2247215, 2945341, 11221318, 601721513, 553148968, 3062410900, 9338247649

Basic calculations (n = 20138981)

Multiplication

n×y

n×2	40277962
n×3	60416943
n×4	80555924
n×5	100694905

Division

n÷y

n÷2	10069490.5
n÷3	6712993.6666667
n÷3	5034745.25
n÷5	4027796.2

Exponentiation

n^y

n²	405578555718361
n³	8.1679388276195E+21
n⁴	1.6449396485859E+29
n⁵	3.3127408329018E+36

Nth Root

^y√n

²√n	4487.6476020294
³√n	272.06906496619
⁴√n	66.989906717575
⁵√n	28.893988688634

Divisors of 20138981

1, 20138981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20138982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10069491	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4487.6477134463	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999006901	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20138981 can be divided by 2 positive divisors. The sum of these divisors (counting 20138981) is 20138982, the average is 10069491.

Base conversion 20138981

Base	System	Value
2	Binary	1001100110100101111100101
3	Ternary	1101220011111012
4	Quaternary	1030310233211
5	Quinary	20123421411
6	Senary	1555352005
8	Octal	114645745
10	Decimal	20138981
12	Duodecimal	68b2605
16	Hexadecimal	1334be5
20	Vigesimal	65h791
36	Base36	bznc5

Cryptographic Hash Functions

md5	5a00ac8a1a49fa00cc6bbcadb8a90d3e
sha1	c856d1c374694bdee7c4e545b7bdc7bec8a6e4da
sha256	84b0cf06a23c8bb912db8461f9d3cb37e8896f9e108e973d438579a06f003c41
sha512	0fe195923a1cb64a092636168608654b5d4fb95d753c19249861619bc1389f99ac43c1228b2af39226a63c34d52d69ae6f670ac64633a8e8d421fb77f4cf73cd
ripemd-160	d7581f231b1e004a8c404cef158cccf12402877c

20138981 as geometric shapes

Circle

Radius = n

Diameter	40277962
Circumference	126536949.52077
Area	1.2741626110984E+15

Sphere

Radius = n

Volume	3.4213782154427E+22
Surface area	5.0966504443934E+15
Circumference	126536949.52077

Square

Length = n

Perimeter	80555924
Area	405578555718361
Diagonal	28480820.062574

Cube

Length = n

Surface area	2433471334310166
Volume	8.1679388276195E+21
Space diagonal	34881738.304664

Equilateral Triangle

Length = n

Perimeter	60416943
Area	1.7562066624115E+14
Altitude	17440869.152332

Triangular Pyramid

Length = n

Surface area	1.7562066624115E+14
Volume	9.6260082222111E+20
Height	9493606.6875247