20147985 (number)

20147985 is an odd 8-digits composite number following 20147984 and preceding 20147986. In scientific notation, it is written as 2.0147985 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 8640000 positive integers (up to 20147985) that are relatively prime to 20147985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0147985 × 10^7
Engineering notation 2.0147985 × 10^6

Prime Factorization of 20147985

Prime Factorization 495 × 13 × 101 × 31

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20147985
Product of the distinct prime numbers

The prime factorization of 20147985 is 495 × 13 × 101 × 31. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 44, 72, 133, 12, 7059, 2672, 21037, 10429, 737457, 631703, 3721578, 9882068, 31699868, 78060605, 705050696, 339015294, 8052274445, 4110551176

Basic calculations (n = 20147985)

Multiplication

n×y
n×2 40295970
n×3 60443955
n×4 80591940
n×5 100739925

Division

n÷y
n÷2 10073992.5
n÷3 6715995
n÷3 5036996.25
n÷5 4029597

Exponentiation

ny
n2 405941299560225
n3 8.1788992144199E+21
n4 1.6478833868864E+29
n5 3.3201529760737E+36

Nth Root

y√n
2√n 4488.6506881244
3√n 272.10960566135
4√n 66.997393144244
5√n 28.896571887457

Divisors of 20147985

1, 13, 31, 101, 403, 495, 1313, 3131, 6435, 15345, 40703, 49995, 199485, 649935, 1549845, 20147985

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 -20147984
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 20147985 can be divided by 16 positive divisors. The sum of these divisors (counting 20147985) is 1, the average is 0.0625.

Base conversion 20147985

Base System Value
2 Binary 1001100110110111100010001
3 Ternary 1101220121211200
4 Quaternary 1030312330101
5 Quinary 20124213420
6 Senary 1555501413
8 Octal 114667421
10 Decimal 20147985
12 Duodecimal 68b7869
16 Hexadecimal 1336f11
20 Vigesimal 65i9j5
36 Base36 bzua9

Cryptographic Hash Functions

md5 6551c8235e3a6d182fc506d6dae26cd4
sha1 2738d534d8a138bbebfe0ff0a6037e878ab8e39b
sha256 c818f56c021141b4b8241ab675da10b90ebf7d2556da4a91d78a18408ea16f80
sha512 bb9645901dbd15e2edfc691e312b2f29dfe401e633d9e32a25b4054a80190b6c02ae2dc2fb4ae7f7c1199455d7ee892d7c0c9dea69f13e96325c7fbf32d00897
ripemd-160 ee31c590c0084ffc13053b00afaa8c6cfe560d73

20147985 as geometric shapes

Circle

Radius = n
Diameter 40295970
Circumference 126593523.32127
Area 1.2753022044871E+15

Sphere

Radius = n
Volume 3.4259692915297E+22
Surface area 5.1012088179484E+15
Circumference 126593523.32127

Square

Length = n
Perimeter 80591940
Area 405941299560225
Diagonal 28493553.64149

Cube

Length = n
Surface area 2435647797361350
Volume 8.1788992144199E+21
Space diagonal 34897333.690136

Equilateral Triangle

Length = n
Perimeter 60443955
Area 1.7577773893221E+14
Altitude 17448666.845068

Triangular Pyramid

Length = n
Surface area 1.7577773893221E+14
Volume 9.6389251619294E+20
Height 9497851.2138299