20121231 is an odd 8-digits composite number following 20121230
and preceding 20121232 . In scientific notation, it is written as 2.0121231 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 12382272 positive integers (up to 20121231) that are relatively prime to 20121231.
20121231 has 8 divisors, whose sum is 28892080
The reverse of 20121231 is 13212102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty million one hundred twenty-one thousand two hundred thirty-one
Scientific notation
2.0121231 × 10^7
Engineering notation
2.0121231 × 10^6
Prime Factorization
3 × 13 × 515929
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121231
Product of the distinct prime numbers
The prime factorization of 20121231 is 3 × 13 × 515929.
Since it has a total of 3 prime factors.
2 , 10 , 15 , 77 , 982 , 96 , 2088 , 3628 , 12521 , 92016 , 531522 , 938737 , 1611744 , 7256474 , 90419123 , 44202711 , 996882105 , 639366884 , 3062273800 , 5991501899
n×2
40242462
n×3
60363693
n×4
80484924
n×5
100606155
n÷2
10060615.5
n÷3
6707077
n÷3
5030307.75
n÷5
4024246.2
n2
404863936955361
n3
8.1463607990483E+21
n4
1.6391480744699E+29
n5
3.2981677049615E+36
2 √n
4485.6695152452
3 √n
271.98910982206
4 √n
66.975141024452
5 √n
28.888893602575
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121230
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121231 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121231) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011010001111
3
Ternary
1101212021010210
4
Quaternary
1030300122033
5
Quinary
20122334411
6
Senary
1555133503
8
Octal
114603217
10
Decimal
20121231
12
Duodecimal
68a4293
16
Hexadecimal
133068f
20
Vigesimal
65f31b
36
Base36
bz9n3
md5
05a991f84efdf319b302f29e3cc24a05
sha1
cf92a6bbf54301a8f11d898043b7ed44b9a9bdff
sha256
70f6d3883b95922cdcb8ab4dfe5c4c4222dabb6bfd4607c3572384446265a0fb
sha512
4d034b3f029327e1ae0197217daf5bd25a09d779c0fa1810c5fa6414e0cac0084e17912b5e4a4f64a6e33534e1385965774d72e496f0fe223a145b18b751e749
ripemd-160
22dd64f7eeb771161695e4521c7cf0a4e98dfe6b
Diameter
40242462
Circumference
126425422.98157
Area
1.2719175700424E+15
Volume
3.4123396319709E+22
Surface area
5.0876702801696E+15
Circumference
126425422.98157
Perimeter
80484924
Area
404863936955361
Diagonal
28455717.771842
Surface area
2429183621732166
Volume
8.1463607990483E+21
Space diagonal
34850994.40283
Perimeter
60363693
Area
1.7531122723976E+14
Altitude
17425497.201415
Surface area
1.7531122723976E+14
Volume
9.6005782716655E+20
Height
9485239.2572807