20121431 is an odd 8-digits composite number following 20121430
and preceding 20121432 . In scientific notation, it is written as 2.0121431 × 10^7.
The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors.
There are 18292200 positive integers (up to 20121431) that are relatively prime to 20121431.
20121431 has 4 divisors, whose sum is 21950664
The reverse of 20121431 is 13412102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand four hundred thirty-one
Scientific notation
2.0121431 × 10^7
Engineering notation
2.0121431 × 10^6
Prime Factorization
11 × 1829221
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121431
Product of the distinct prime numbers
The prime factorization of 20121431 is 11 × 1829221.
Since it has a total of 2 prime factors.
8 , 9 , 15 , 15 , 974 , 498 , 2942 , 5040 , 92446 , 98274 , 766537 , 801587 , 8654011 , 9367864 , 37560184 , 45564496 , 111338960 , 27055582 , 1061844617 , 5463741284
n×2
40242862
n×3
60364293
n×4
80485724
n×5
100607155
n÷2
10060715.5
n÷3
6707143.6666667
n÷3
5030357.75
n÷5
4024286.2
n2
404871985487761
n3
8.146603719825E+21
n4
1.639213246328E+29
n5
3.2983316230275E+36
2 √n
4485.6918084059
3 √n
271.99001098697
4 √n
66.975307452866
5 √n
28.888951032021
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121430
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121431 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121431) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011101010111
3
Ternary
1101212021102012
4
Quaternary
1030300131113
5
Quinary
20122341211
6
Senary
1555134435
8
Octal
114603527
10
Decimal
20121431
12
Duodecimal
68a441b
16
Hexadecimal
1330757
20
Vigesimal
65f3bb
36
Base36
bz9sn
md5
a5607e058e5dbee5f4106822edb9d64c
sha1
e6b7fd815f00f488bb02163583cb81d047f554b6
sha256
fe2bf744965b603a2a8d28c17d6de321fa61d7b7762bb0d2664df58523e6726a
sha512
70ddc58a3facffc0fd3cf8b3ed0f34bcb8b5c6f03c5fdc7e17701039efa634b27e76b0ed0200c6f6d4ba7e2b8e1d7679e11bbfdc0764f83d578afa680d9389b9
ripemd-160
66c6f0bcb9203e4665a48e19c0d1679d06ac5364
Diameter
40242862
Circumference
126426679.61863
Area
1.2719428552527E+15
Volume
3.4124413863879E+22
Surface area
5.0877714210107E+15
Circumference
126426679.61863
Perimeter
80485724
Area
404871985487761
Diagonal
28456000.614554
Surface area
2429231912926566
Volume
8.146603719825E+21
Space diagonal
34851340.812991
Perimeter
60364293
Area
1.7531471235652E+14
Altitude
17425670.406496
Surface area
1.7531471235652E+14
Volume
9.6008645565463E+20
Height
9485333.5381848