20149831 is an odd 8-digits composite number following 20149830
and preceding 20149832 . In scientific notation, it is written as 2.0149831 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18599832 positive integers (up to 20149831) that are relatively prime to 20149831.
20149831 has 4 divisors, whose sum is 21699832
The reverse of 20149831 is 13894102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred forty-nine thousand eight hundred thirty-one
Scientific notation
2.0149831 × 10^7
Engineering notation
2.0149831 × 10^6
Prime Factorization
13 × 1549987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20149831
Product of the distinct prime numbers
The prime factorization of 20149831 is 13 × 1549987.
Since it has a total of 2 prime factors.
10 , 7 , 79 , 90 , 924 , 880 , 3262 , 2961 , 91288 , 28970 , 159404 , 355105 , 9321566 , 8020730 , 53331900 , 76451000 , 865071224 , 757681609 , 5743195939 , 6063823956
n×2
40299662
n×3
60449493
n×4
80599324
n×5
100749155
n÷2
10074915.5
n÷3
6716610.3333333
n÷3
5037457.75
n÷5
4029966.2
n2
406015689328561
n3
8.181147523319E+21
n4
1.6484873998095E+29
n5
3.321674251179E+36
2 √n
4488.8563131381
3 √n
272.11791582226
4 √n
66.998927701405
5 √n
28.897101380772
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
-20149830
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 20149831 can be divided by 4 positive divisors.
The sum of these divisors (counting 20149831) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111011001000111
3
Ternary
1101220201101001
4
Quaternary
1030313121013
5
Quinary
20124243311
6
Senary
1555514131
8
Octal
114673107
10
Decimal
20149831
12
Duodecimal
68b8947
16
Hexadecimal
1337647
20
Vigesimal
65iebb
36
Base36
bzvpj
md5
9745c72c7b19cc0f65cfffe20bcf27b0
sha1
fe164a400d7ee32264d59cc7267b28803ca3c622
sha256
9182aff1cef7fe539f84470169487998c056e80c99a4d66e2846efcb05a62164
sha512
4530ed14e534dea1f0978e2e297cdef372b807b550ae47bcc36bea4a0ab9e39d05079cb6d6d717f34516cf11188f6117402880c4f7d744c54b7d5e45787d4326
ripemd-160
5254aa929b932bd77b740f6f50de41a9235f603e
Diameter
40299662
Circumference
126605122.08135
Area
1.2755359068368E+15
Volume
3.4269110609591E+22
Surface area
5.1021436273472E+15
Circumference
126605122.08135
Perimeter
80599324
Area
406015689328561
Diagonal
28496164.279726
Surface area
2436094135971366
Volume
8.181147523319E+21
Space diagonal
34900531.055926
Perimeter
60449493
Area
1.7580995064679E+14
Altitude
17450265.527963
Surface area
1.7580995064679E+14
Volume
9.6415748193773E+20
Height
9498721.4265753