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

20138945 (number)

20138945 is an odd 8-digits composite number following 20138944 and preceding 20138946. In scientific notation, it is written as 2.0138945 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 16111152 positive integers (up to 20138945) that are relatively prime to 20138945.

Interesting facts

20138945 has 4 divisors, whose sum is 24166740
The reverse of 20138945 is 54983102
Previous prime number is 5

Basic properties

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

Name

Name	twenty million one hundred thirty-eight thousand nine hundred forty-five

Notation

Scientific notation	2.0138945 × 10^7
Engineering notation	2.0138945 × 10^6

Prime Factorization of 20138945

Prime Factorization 5 × 4027789

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20138945	Product of the distinct prime numbers

The prime factorization of 20138945 is 5 × 4027789. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 1, 12, 92, 27, 891, 8428, 9991, 546, 67033, 442848, 622, 9285762, 7933026, 1847178, 12035768, 72641946, 730706005, 3314200220, 7478616678

Basic calculations (n = 20138945)

Multiplication

n×y

n×2	40277890
n×3	60416835
n×4	80555780
n×5	100694725

Division

n÷y

n÷2	10069472.5
n÷3	6712981.6666667
n÷3	5034736.25
n÷5	4027789

Exponentiation

n^y

n²	405577105713025
n³	8.1678950252138E+21
n⁴	1.6449278867855E+29
n⁵	3.312711224094E+36

Nth Root

^y√n

²√n	4487.6435910175
³√n	272.0689028512
⁴√n	66.989876780133
⁵√n	28.893978358575

Divisors of 20138945

1, 5, 4027789, 20138945

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	-20138944	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 20138945 can be divided by 4 positive divisors. The sum of these divisors (counting 20138945) is 1, the average is 0.25.

Base conversion 20138945

Base	System	Value
2	Binary	1001100110100101111000001
3	Ternary	1101220011102212
4	Quaternary	1030310233001
5	Quinary	20123421240
6	Senary	1555351505
8	Octal	114645701
10	Decimal	20138945
12	Duodecimal	68b2595
16	Hexadecimal	1334bc1
20	Vigesimal	65h775
36	Base36	bznb5

Cryptographic Hash Functions

md5	237c594fd822df9a53565b14c2fab914
sha1	5458466df3c9fef559c6d5b610312b8dd975c926
sha256	6d0c7afe82cd2a39c983e23edf70cd86fd4e3ffb1c86df824ee1a46c9c531190
sha512	a3472572549577b90b183e12cbf190f7663283ad4c3a291ee64096d8a6df9114c63b876d5e8603f588eef8a80d652965336c1b3e809101894f98259e82cfd15f
ripemd-160	b1368950a006f8610c2ccc889ed87be3fd6e4f38

20138945 as geometric shapes

Circle

Radius = n

Diameter	40277890
Circumference	126536723.3261
Area	1.2741580557723E+15

Sphere

Radius = n

Volume	3.4213598675339E+22
Surface area	5.096632223089E+15
Circumference	126536723.3261

Square

Length = n

Perimeter	80555780
Area	405577105713025
Diagonal	28480769.150886

Cube

Length = n

Surface area	2433462634278150
Volume	8.1678950252138E+21
Space diagonal	34881675.950835

Equilateral Triangle

Length = n

Perimeter	60416835
Area	1.7562003837042E+14
Altitude	17440837.975418

Triangular Pyramid

Length = n

Surface area	1.7562003837042E+14
Volume	9.6259566005809E+20
Height	9493589.7169619