20989831 is an odd 8-digits composite number following 20989830
and preceding 20989832 . In scientific notation, it is written as 2.0989831 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20932272 positive integers (up to 20989831) that are relatively prime to 20989831.
20989831 has 4 divisors, whose sum is 21047392
The reverse of 20989831 is 13898902
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred eighty-nine thousand eight hundred thirty-one
Scientific notation
2.0989831 × 10^7
Engineering notation
2.0989831 × 10^6
Prime Factorization
367 × 57193
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20989831
Product of the distinct prime numbers
The prime factorization of 20989831 is 367 × 57193.
Since it has a total of 2 prime factors.
5 , 3 , 17 , 99 , 370 , 612 , 5591 , 8283 , 83075 , 44855 , 347744 , 264535 , 7615593 , 5014446 , 38242008 , 54390744 , 656122867 , 492031404 , 8257726530 , 7505283396
n×2
41979662
n×3
62969493
n×4
83959324
n×5
104949155
n÷2
10494915.5
n÷3
6996610.3333333
n÷3
5247457.75
n÷5
4197966.2
n2
440573005408561
n3
9.2475529266878E+21
n4
1.9410457309473E+29
n5
4.0742221855856E+36
2 √n
4581.4660317414
3 √n
275.84787790846
4 √n
67.686527697477
5 √n
29.134112196285
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
-20989830
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 20989831 can be divided by 4 positive divisors.
The sum of these divisors (counting 20989831) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100011110000111
3
Ternary
1110111101122011
4
Quaternary
1100010132013
5
Quinary
20333133311
6
Senary
2025515051
8
Octal
120043607
10
Decimal
20989831
12
Duodecimal
7042a87
16
Hexadecimal
1404787
20
Vigesimal
6b3ebb
36
Base36
chvuv
md5
fa6d52c155b5b14620639c63ad885090
sha1
48af720ae2072ef5d53d62bf4006fd911b479768
sha256
e21c65b3a6bbc72213df0539ca02bb8e10da186b99ec5bb05d5df82e15c8b170
sha512
ceb3cea7392a0d0b1a42b6d201ccdc2fca0f341d861333fc830b9a03c7931d33e50b7799a5bf906e571cb1b6585eb941389a214e7b51614178aaf2156aa7a4c5
ripemd-160
0db36afa7e938150d8c656ff191cddae120f6f6c
Diameter
41979662
Circumference
131882997.73938
Area
1.3841009171615E+15
Volume
3.8736059117553E+22
Surface area
5.536403668646E+15
Circumference
131882997.73938
Perimeter
83959324
Area
440573005408561
Diagonal
29684103.672119
Surface area
2643438032451366
Volume
9.2475529266878E+21
Space diagonal
36355453.734284
Perimeter
62969493
Area
1.9077370745274E+14
Altitude
18177726.867142
Surface area
1.9077370745274E+14
Volume
1.0898345639737E+21
Height
9894701.2240397