20180912 (number)

20180912 is an even 8-digits composite number following 20180911 and preceding 20180913. In scientific notation, it is written as 2.0180912 × 10^7. The sum of its digits is 23. It has a total of 6 prime factors and 20 positive divisors. There are 10072320 positive integers (up to 20180912) that are relatively prime to 20180912.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty thousand nine hundred twelve

Notation

Scientific notation 2.0180912 × 10^7
Engineering notation 2.0180912 × 10^6

Prime Factorization of 20180912

Prime Factorization 2 × 2 × 2 × 2 × 1291 × 977

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2522614
Product of the distinct prime numbers

The prime factorization of 20180912 is 2 × 2 × 2 × 2 × 1291 × 977. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 6, 67, 92, 65, 868, 6572, 5893, 53383, 86204, 999936, 469491, 9992649, 9683087, 60809343, 66366430, 853747142, 331165210, 4146128317, 5333698353

Basic calculations (n = 20180912)

Multiplication

n×y
n×2 40361824
n×3 60542736
n×4 80723648
n×5 100904560

Division

n÷y
n÷2 10090456
n÷3 6726970.6666667
n÷3 5045228
n÷5 4036182.4

Exponentiation

ny
n2 407269209151744
n3 8.2190640702009E+21
n4 1.6586820872309E+29
n5 3.3473717238383E+36

Nth Root

y√n
2√n 4492.3169968291
3√n 272.25775739238
4√n 67.024749136637
5√n 28.906010608481

Divisors of 20180912

1, 2, 4, 8, 16, 977, 1291, 1954, 2582, 3908, 5164, 7816, 10328, 15632, 20656, 1261307, 2522614, 5045228, 10090456, 20180912

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 -20180911
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 20180912 can be divided by 20 positive divisors. The sum of these divisors (counting 20180912) is 1, the average is 0.05.

Base conversion 20180912

Base System Value
2 Binary 1001100111110111110110000
3 Ternary 1101222022000012
4 Quaternary 1030332332300
5 Quinary 20131242122
6 Senary 2000314052
8 Octal 114767660
10 Decimal 20180912
12 Duodecimal 6912928
16 Hexadecimal 133efb0
20 Vigesimal 662c5c
36 Base36 c0jow

Cryptographic Hash Functions

md5 0fdb4462ddf983d01f80324989b1913a
sha1 3f7863593104ff87b992cc8489bf5ebc918ccb99
sha256 5247da14b3a0017c6c3615612e7986f6781666fa9aba98e988c28d2146a92d6f
sha512 e0b047ee1988359e4ffd21f57df80d9452559cdb574f02976f7e256992fd2ea759c34d65add887231685eef02c40b59863ac6da5723d897312d6da159eb6b14e
ripemd-160 717b52b52a7a5529053d921cf2ef6eb1ccfe3c46

20180912 as geometric shapes

Circle

Radius = n
Diameter 40361824
Circumference 126800409.76388
Area 1.2794739555044E+15

Sphere

Radius = n
Volume 3.4427935069769E+22
Surface area 5.1178958220178E+15
Circumference 126800409.76388

Square

Length = n
Perimeter 80723648
Area 407269209151744
Diagonal 28540119.451458

Cube

Length = n
Surface area 2443615254910464
Volume 8.2190640702009E+21
Space diagonal 34954364.927076

Equilateral Triangle

Length = n
Perimeter 60542736
Area 1.763527406523E+14
Altitude 17477182.463538

Triangular Pyramid

Length = n
Surface area 1.763527406523E+14
Volume 9.6862598984097E+20
Height 9513373.150486