20121812 is an even 8-digits composite number following 20121811
and preceding 20121813 . In scientific notation, it is written as 2.0121812 × 10^7.
The sum of its digits is 17. It has a total of 4 prime factors and 12 positive divisors.
There are 9469056 positive integers (up to 20121812) that are relatively prime to 20121812.
20121812 has 12 divisors, whose sum is 37284660
The reverse of 20121812 is 21812102
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty-one thousand eight hundred twelve
Scientific notation
2.0121812 × 10^7
Engineering notation
2.0121812 × 10^6
Prime Factorization
2 × 2 × 17 × 295909
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10060906
Product of the distinct prime numbers
The prime factorization of 20121812 is 2 × 2 × 17 × 295909.
Since it has a total of 4 prime factors.
7 , 2 , 67 , 64 , 65 , 153 , 2491 , 8295 , 71329 , 44895 , 395482 , 816793 , 7428634 , 3180556 , 10697206 , 81133558 , 64940864 , 788192359 , 7726563587 , 1785879274
n×2
40243624
n×3
60365436
n×4
80487248
n×5
100609060
n÷2
10060906
n÷3
6707270.6666667
n÷3
5030453
n÷5
4024362.4
n2
404887318163344
n3
8.147066497267E+21
n4
1.639337404095E+29
n5
3.2986439049769E+36
2 √n
4485.7342765706
3 √n
271.99172768959
4 √n
66.975624495562
5 √n
28.889060433852
1 , 2 , 4 , 17 , 34 , 68 , 295909 , 591818 , 1183636 , 5030453 , 10060906 , 20121812
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121812 can be divided by 12 positive divisors.
The sum of these divisors (counting 20121812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110000100011010100
3
Ternary
1101212021221022
4
Quaternary
1030300203110
5
Quinary
20122344222
6
Senary
1555140312
8
Octal
114604324
10
Decimal
20121812
12
Duodecimal
68a4698
16
Hexadecimal
13308d4
20
Vigesimal
65f4ac
36
Base36
bza38
md5
5ce6e51c46a0c4a675b0823510798950
sha1
5d76669bcf3ae2de3501515cd9f8650e5393fef7
sha256
f8c3325850a338454cfa637d49c0b3afeb80045f74a7311906fdd6433f834aed
sha512
9885960cc7e5b4db2a79988b02f32685f49ff0e83f149fe26f3cd814fd51beee4e6f125358f3f6d29406bf83e7a89056d149005ccd53a285d6f10723aa7a2a8d
ripemd-160
cd92523c16fc831e65902a331234b4bcff3e5169
Diameter
40243624
Circumference
126429073.51223
Area
1.2719910242736E+15
Volume
3.4126352341495E+22
Surface area
5.0879640970945E+15
Circumference
126429073.51223
Perimeter
80487248
Area
404887318163344
Diagonal
28456539.429922
Surface area
2429323908980064
Volume
8.147066497267E+21
Space diagonal
34852000.724349
Perimeter
60365436
Area
1.753213515998E+14
Altitude
17426000.362175
Surface area
1.753213515998E+14
Volume
9.601409944992E+20
Height
9485513.1433072