20138949 (number)

20138949 is an odd 8-digits composite number following 20138948 and preceding 20138950. In scientific notation, it is written as 2.0138949 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 20 positive divisors. There are 13296960 positive integers (up to 20138949) that are relatively prime to 20138949.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0138949 × 10^7
Engineering notation 2.0138949 × 10^6

Prime Factorization of 20138949

Prime Factorization 9 × 3 × 3 × 109 × 2281

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6712983
Product of the distinct prime numbers

The prime factorization of 20138949 is 9 × 3 × 3 × 109 × 2281. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 3, 20, 26, 194, 836, 4289, 5695, 16742, 93813, 154710, 305542, 7916558, 4526777, 87588756, 78775970, 289326033, 811009678, 335922721, 1772330997

Basic calculations (n = 20138949)

Multiplication

n×y
n×2 40277898
n×3 60416847
n×4 80555796
n×5 100694745

Division

n÷y
n÷2 10069474.5
n÷3 6712983
n÷3 5034737.25
n÷5 4027789.8

Exponentiation

ny
n2 405577266824601
n3 8.16789989214E+21
n4 1.6449291936491E+29
n5 3.3127145139511E+36

Nth Root

y√n
2√n 4487.6440366856
3√n 272.06892086398
4√n 66.989880106518
5√n 28.89397950636

Divisors of 20138949

1, 3, 9, 27, 81, 109, 327, 981, 2281, 2943, 6843, 8829, 20529, 61587, 184761, 248629, 745887, 2237661, 6712983, 20138949

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20138948
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20138949 can be divided by 20 positive divisors. The sum of these divisors (counting 20138949) is 1, the average is 0.05.

Base conversion 20138949

Base System Value
2 Binary 1001100110100101111000101
3 Ternary 1101220011110000
4 Quaternary 1030310233011
5 Quinary 20123421244
6 Senary 1555351513
8 Octal 114645705
10 Decimal 20138949
12 Duodecimal 68b2599
16 Hexadecimal 1334bc5
20 Vigesimal 65h779
36 Base36 bznb9

Cryptographic Hash Functions

md5 2a388132861c4e3cc952ce376b8f53fa
sha1 3d40302952fc71b8260985bd1a6395fbc1a05398
sha256 cddafa57efcddca3fd05df4364cdf579dab34a959e459db342d97d17020a3e12
sha512 5c1a7f11593c20364f8e39d8e536a08e4e7138670aa84f82fae0a21664ca41026bdf8f83bec7a0fbf4245350e01f9ba27acab64cf66e6eee4b09ddec98dbaea0
ripemd-160 c6359bb77827a3a4feb8ea23c82086d4e4c61866

20138949 as geometric shapes

Circle

Radius = n
Diameter 40277898
Circumference 126536748.45884
Area 1.2741585619192E+15

Sphere

Radius = n
Volume 3.4213619061872E+22
Surface area 5.0966342476768E+15
Circumference 126536748.45884

Square

Length = n
Perimeter 80555796
Area 405577266824601
Diagonal 28480774.80774

Cube

Length = n
Surface area 2433463600947606
Volume 8.16789989214E+21
Space diagonal 34881682.879038

Equilateral Triangle

Length = n
Perimeter 60416847
Area 1.7562010813378E+14
Altitude 17440841.439519

Triangular Pyramid

Length = n
Surface area 1.7562010813378E+14
Volume 9.6259623363085E+20
Height 9493591.60258