20129985 (number)

20129985 is an odd 8-digits composite number following 20129984 and preceding 20129986. In scientific notation, it is written as 2.0129985 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 10735920 positive integers (up to 20129985) that are relatively prime to 20129985.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-nine thousand nine hundred eighty-five

Notation

Scientific notation 2.0129985 × 10^7
Engineering notation 2.0129985 × 10^6

Prime Factorization of 20129985

Prime Factorization 5 × 9 × 3 × 149111

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20129985
Product of the distinct prime numbers

The prime factorization of 20129985 is 5 × 9 × 3 × 149111. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 34, 81, 909, 840, 1588, 8577, 95566, 30069, 533613, 488695, 7838207, 6827071, 68141692, 21943240, 621847057, 449534728, 5838498477, 4151352246

Basic calculations (n = 20129985)

Multiplication

n×y
n×2 40259970
n×3 60389955
n×4 80519940
n×5 100649925

Division

n÷y
n÷2 10064992.5
n÷3 6709995
n÷3 5032496.25
n÷5 4025997

Exponentiation

ny
n2 405216296100225
n3 8.1569979622531E+21
n4 1.6420024662519E+29
n5 3.3053485015613E+36

Nth Root

y√n
2√n 4486.6451832076
3√n 272.02854822185
4√n 66.982424435128
5√n 28.89140686209

Divisors of 20129985

1, 3, 5, 9, 15, 27, 45, 135, 149111, 447333, 745555, 1341999, 2236665, 4025997, 6709995, 20129985

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 -20129984
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 20129985 can be divided by 16 positive divisors. The sum of these divisors (counting 20129985) is 1, the average is 0.0625.

Base conversion 20129985

Base System Value
2 Binary 1001100110010100011000001
3 Ternary 1101212201011000
4 Quaternary 1030302203001
5 Quinary 20123124420
6 Senary 1555242213
8 Octal 114624301
10 Decimal 20129985
12 Duodecimal 68a9369
16 Hexadecimal 13328c1
20 Vigesimal 65g4j5
36 Base36 bzge9

Cryptographic Hash Functions

md5 f78254b40d23e833c799a5119ff606f6
sha1 38c55b86958820dfecfd76e91edf4ae5848345dd
sha256 a84f31758ae4e4bebd19cf1d2e24d72af8f9c7c74cc783ceeaa0bbc8515b98dd
sha512 7519bc1757848586bf86586a335844dc452887be15fa24f332a1bb75b2049ba76c208af50083c313d7c86d717f4305f48d49e49786d2db907abb71d18535a096
ripemd-160 079909260899f8166d6ae5d044633916e2ee90f5

20129985 as geometric shapes

Circle

Radius = n
Diameter 40259970
Circumference 126480425.98575
Area 1.2730245389433E+15

Sphere

Radius = n
Volume 3.4167953164748E+22
Surface area 5.0920981557733E+15
Circumference 126480425.98575

Square

Length = n
Perimeter 80519940
Area 405216296100225
Diagonal 28468097.797367

Cube

Length = n
Surface area 2431297776601350
Volume 8.1569979622531E+21
Space diagonal 34866156.775599

Equilateral Triangle

Length = n
Perimeter 60389955
Area 1.7546380322512E+14
Altitude 17433078.3878

Triangular Pyramid

Length = n
Surface area 1.7546380322512E+14
Volume 9.6131142887233E+20
Height 9489365.9324557