20155831 is an odd 8-digits prime number following 20155830
and preceding 20155832 . In scientific notation, it is written as 2.0155831 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20155830 positive integers (up to 20155831) that are relatively prime to 20155831.
20155831 has 2 divisors, whose sum is 20155832
The reverse of 20155831 is 13855102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred fifty-five thousand eight hundred thirty-one
Scientific notation
2.0155831 × 10^7
Engineering notation
2.0155831 × 10^6
Prime Factorization
20155831
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20155831
Product of the distinct prime numbers
The prime factorization of 20155831 is 20155831.
Since it has a total of 1 prime factors.
3 , 5 , 15 , 56 , 250 , 231 , 1281 , 5664 , 99631 , 85102 , 190762 , 565743 , 8152300 , 6308831 , 55798643 , 20415145 , 552198404 , 780294789 , 7968028645 , 132348349
n×2
40311662
n×3
60467493
n×4
80623324
n×5
100779155
n÷2
10077915.5
n÷3
6718610.3333333
n÷3
5038957.75
n÷5
4031166.2
n2
406257523300561
n3
8.1884579821247E+21
n4
1.6504517523831E+29
n5
3.3266226594687E+36
2 √n
4489.5245850758
3 √n
272.14492259078
4 √n
67.003914699634
5 √n
28.898822109455
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20155832
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10077916
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4489.5246964462
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999007731
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20155831 can be divided by 2 positive divisors.
The sum of these divisors (counting 20155831) is 20155832, the average is 10077916.
Base
System
Value
2
Binary
1001100111000110110110111
3
Ternary
1101221000121021
4
Quaternary
1030320312313
5
Quinary
20124441311
6
Senary
2000002011
8
Octal
114706667
10
Decimal
20155831
12
Duodecimal
6900307
16
Hexadecimal
1338db7
20
Vigesimal
65j9bb
36
Base36
c00c7
md5
68bfd205c106cdea466efa9e95a988ed
sha1
a91124b051bf42f7b95e76ad06471ac18d006c21
sha256
722494a17cc18cd2f2c1e0826b545e0309f2ba24e686e01cda59945b8c0c56e4
sha512
146c5362f76ae23808deead5b150fcac8611a590c39b5f01f7dfb1f5a1bf9efba217eb09b2db453b7ec07e67d069f2e26db2cf4049232cc5a877ec40f04e5ffd
ripemd-160
fbf0605c4d5d65fa961ef8232d75cb636c8810a8
Diameter
40311662
Circumference
126642821.19319
Area
1.2762956506666E+15
Volume
3.4299732587829E+22
Surface area
5.1051826026665E+15
Circumference
126642821.19319
Perimeter
80623324
Area
406257523300561
Diagonal
28504649.5611
Surface area
2437545139803366
Volume
8.1884579821247E+21
Space diagonal
34910923.360772
Perimeter
60467493
Area
1.7591466782842E+14
Altitude
17455461.680386
Surface area
1.7591466782842E+14
Volume
9.6501902777024E+20
Height
9501549.8537