20145985 (number)

20145985 is an odd 8-digits composite number following 20145984 and preceding 20145986. In scientific notation, it is written as 2.0145985 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 15163200 positive integers (up to 20145985) that are relatively prime to 20145985.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0145985 × 10^7
Engineering notation 2.0145985 × 10^6

Prime Factorization of 20145985

Prime Factorization 5 × 19 × 163 × 1301

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20145985
Product of the distinct prime numbers

The prime factorization of 20145985 is 5 × 19 × 163 × 1301. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 2, 27, 434, 839, 7102, 8370, 24042, 99239, 908125, 889587, 3256711, 1123711, 45825577, 63115313, 267689059, 997876061, 7072297788, 4215663618

Basic calculations (n = 20145985)

Multiplication

n×y
n×2 40291970
n×3 60437955
n×4 80583940
n×5 100729925

Division

n÷y
n÷2 10072992.5
n÷3 6715328.3333333
n÷3 5036496.25
n÷5 4029197

Exponentiation

ny
n2 405860711620225
n3 8.1764638083904E+21
n4 1.6472291723688E+29
n5 3.3185054198103E+36

Nth Root

y√n
2√n 4488.4278984963
3√n 272.10060166385
4√n 66.995730449756
5√n 28.89599817809

Divisors of 20145985

1, 5, 19, 95, 163, 815, 1301, 3097, 6505, 15485, 24719, 123595, 212063, 1060315, 4029197, 20145985

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 -20145984
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 20145985 can be divided by 16 positive divisors. The sum of these divisors (counting 20145985) is 1, the average is 0.0625.

Base conversion 20145985

Base System Value
2 Binary 1001100110110011101000001
3 Ternary 1101220112002121
4 Quaternary 1030312131001
5 Quinary 20124132420
6 Senary 1555444241
8 Octal 114663501
10 Decimal 20145985
12 Duodecimal 68b6681
16 Hexadecimal 1336741
20 Vigesimal 65i4j5
36 Base36 bzsqp

Cryptographic Hash Functions

md5 aa08d41bc0837e611a2bda9b346a22c7
sha1 9eaf5490e5ec073a77d246f3947287717c97f9d6
sha256 2371c91e3285db7707e2e7cb2e3f25e4d211416f0c8828233d00385771cb6ee7
sha512 a14e3d5206b79b51ba530a7c4334fe6668a76d5274f0a6bdc2a37637aa13e01a92dd007be387d8a7efa99424e6e9f6998a9070ed21fc445115a0f12a504bcdea
ripemd-160 7021be5cd8660aa10892087b2570d736a47fe07f

20145985 as geometric shapes

Circle

Radius = n
Diameter 40291970
Circumference 126580956.95066
Area 1.2750490300068E+15

Sphere

Radius = n
Volume 3.4249491510376E+22
Surface area 5.1001961200273E+15
Circumference 126580956.95066

Square

Length = n
Perimeter 80583940
Area 405860711620225
Diagonal 28490725.214365

Cube

Length = n
Surface area 2435164269721350
Volume 8.1764638083904E+21
Space diagonal 34893869.58852

Equilateral Triangle

Length = n
Perimeter 60437955
Area 1.7574284333057E+14
Altitude 17446934.79426

Triangular Pyramid

Length = n
Surface area 1.7574284333057E+14
Volume 9.6360550083987E+20
Height 9496908.4047883