20138988 (number)

20138988 is an even 8-digits composite number following 20138987 and preceding 20138989. In scientific notation, it is written as 2.0138988 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors. There are 6712992 positive integers (up to 20138988) that are relatively prime to 20138988.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0138988 × 10^7
Engineering notation 2.0138988 × 10^6

Prime Factorization of 20138988

Prime Factorization 2 × 2 × 3 × 1678249

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10069494
Product of the distinct prime numbers

The prime factorization of 20138988 is 2 × 2 × 3 × 1678249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 66, 38, 902, 885, 7297, 3970, 66085, 1661, 87652, 514071, 1909720, 7326800, 61512566, 27898997, 146163612, 411826969, 3971755658, 7619882304

Basic calculations (n = 20138988)

Multiplication

n×y
n×2 40277976
n×3 60416964
n×4 80555952
n×5 100694940

Division

n÷y
n÷2 10069494
n÷3 6712996
n÷3 5034747
n÷5 4027797.6

Exponentiation

ny
n2 405578837664144
n3 8.1679473447721E+21
n4 1.64494193561E+29
n5 3.3127465901946E+36

Nth Root

y√n
2√n 4487.6483819479
3√n 272.06909648853
4√n 66.989912538739
5√n 28.893990697255

Divisors of 20138988

1, 2, 3, 4, 6, 12, 1678249, 3356498, 5034747, 6712996, 10069494, 20138988

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20138987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20138988 can be divided by 12 positive divisors. The sum of these divisors (counting 20138988) is 1, the average is 0.083333333333333.

Base conversion 20138988

Base System Value
2 Binary 1001100110100101111101100
3 Ternary 1101220011111110
4 Quaternary 1030310233230
5 Quinary 20123421423
6 Senary 1555352020
8 Octal 114645754
10 Decimal 20138988
12 Duodecimal 68b2610
16 Hexadecimal 1334bec
20 Vigesimal 65h798
36 Base36 bzncc

Cryptographic Hash Functions

md5 785d66ac91997cf3510c15272a26f513
sha1 0042681ea8eadbbf543de7bd38233e7d1d4146c8
sha256 c2dedc3143e577dfc9da1a1b9b3df5b65034ffda3019e6c0ab659a9264ea2c83
sha512 670958fc43e4fed3e7c06f948785a1221867e91328c6be4172b7caad787fbd2916ed94bfae3452f19d87fe85ca1f7d0b7f39f7ed612b055969f43c0c7900cbe8
ripemd-160 c8e1e2c1b15d92ec8669fbbf9933d656a07de087

20138988 as geometric shapes

Circle

Radius = n
Diameter 40277976
Circumference 126536993.50307
Area 1.2741634968572E+15

Sphere

Radius = n
Volume 3.4213817830993E+22
Surface area 5.0966539874286E+15
Circumference 126536993.50307

Square

Length = n
Perimeter 80555952
Area 405578837664144
Diagonal 28480829.962069

Cube

Length = n
Surface area 2433473025984864
Volume 8.1679473447721E+21
Space diagonal 34881750.42902

Equilateral Triangle

Length = n
Perimeter 60416964
Area 1.7562078832726E+14
Altitude 17440875.21451

Triangular Pyramid

Length = n
Surface area 1.7562078832726E+14
Volume 9.6260182597717E+20
Height 9493609.9873563