20990431 is an odd 8-digits composite number following 20990430
and preceding 20990432 . In scientific notation, it is written as 2.0990431 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16356120 positive integers (up to 20990431) that are relatively prime to 20990431.
20990431 has 8 divisors, whose sum is 26169984
The reverse of 20990431 is 13409902
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred ninety thousand four hundred thirty-one
Scientific notation
2.0990431 × 10^7
Engineering notation
2.0990431 × 10^6
Prime Factorization
7 × 11 × 272603
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20990431
Product of the distinct prime numbers
The prime factorization of 20990431 is 7 × 11 × 272603.
Since it has a total of 3 prime factors.
8 , 2 , 51 , 64 , 750 , 556 , 8524 , 739 , 8676 , 59081 , 735557 , 138305 , 7956798 , 616231 , 10846204 , 77666660 , 489422179 , 564371485 , 6682830091 , 8843016661
n×2
41980862
n×3
62971293
n×4
83961724
n×5
104952155
n÷2
10495215.5
n÷3
6996810.3333333
n÷3
5247607.75
n÷5
4198086.2
n2
440598193565761
n3
9.2483459807667E+21
n4
1.9412676817341E+29
n5
4.074804532597E+36
2 √n
4581.5315124967
3 √n
275.85050627883
4 √n
67.687011401721
5 √n
29.134278755677
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
-20990430
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 20990431 can be divided by 8 positive divisors.
The sum of these divisors (counting 20990431) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100100111011111
3
Ternary
1110111102110101
4
Quaternary
1100010213133
5
Quinary
20333143211
6
Senary
2025521531
8
Octal
120044737
10
Decimal
20990431
12
Duodecimal
70432a7
16
Hexadecimal
14049df
20
Vigesimal
6b3g1b
36
Base36
chwbj
md5
3862f2be3344a3bb77276dc85387bb61
sha1
e7be8fe2172fb518c5633d5d86cc61ab2026293f
sha256
dcb6f3b46084423daecdde26202283cb66942763cf9ff60fc9895de51d24031c
sha512
8264054f720379538261febabf5c0539b91619bbcd674c106e8ccc6ca67693c60e8505ee3f3bb67eb44e25a412f1b0ad2c11051f139d61866b502341a4c40d79
ripemd-160
bdcb8c573fddf4321ce6a815fb6c66be1a945d9a
Diameter
41980862
Circumference
131886767.65057
Area
1.3841800480911E+15
Volume
3.8739381054711E+22
Surface area
5.5367201923645E+15
Circumference
131886767.65057
Perimeter
83961724
Area
440598193565761
Diagonal
29684952.200257
Surface area
2643589161394566
Volume
9.2483459807667E+21
Space diagonal
36356492.964769
Perimeter
62971293
Area
1.9078461424474E+14
Altitude
18178246.482384
Surface area
1.9078461424474E+14
Volume
1.0899280262933E+21
Height
9894984.0667522