20155215 is an odd 8-digits composite number following 20155214
and preceding 20155216 . In scientific notation, it is written as 2.0155215 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 10749440 positive integers (up to 20155215) that are relatively prime to 20155215.
20155215 has 8 divisors, whose sum is 32248368
The reverse of 20155215 is 51255102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred fifty-five thousand two hundred fifteen
Scientific notation
2.0155215 × 10^7
Engineering notation
2.0155215 × 10^6
Prime Factorization
3 × 5 × 1343681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20155215
Product of the distinct prime numbers
The prime factorization of 20155215 is 3 × 5 × 1343681.
Since it has a total of 3 prime factors.
6 , 9 , 76 , 15 , 584 , 846 , 4764 , 4893 , 14663 , 2068 , 564576 , 72033 , 1130101 , 7753463 , 60269593 , 27186309 , 35106270 , 382625672 , 3723572500 , 4193401747
n×2
40310430
n×3
60465645
n×4
80620860
n×5
100776075
n÷2
10077607.5
n÷3
6718405
n÷3
5038803.75
n÷5
4031043
n2
406232691696225
n3
8.1877072411661E+21
n4
1.6502499980276E+29
n5
3.3261143513996E+36
2 √n
4489.4559804056
3 √n
272.14215014278
4 √n
67.00340275244
5 √n
28.898645466854
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
-20155214
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 20155215 can be divided by 8 positive divisors.
The sum of these divisors (counting 20155215) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000101101001111
3
Ternary
1101220222202110
4
Quaternary
1030320231033
5
Quinary
20124431330
6
Senary
1555555103
8
Octal
114705517
10
Decimal
20155215
12
Duodecimal
68bba93
16
Hexadecimal
1338b4f
20
Vigesimal
65j80f
36
Base36
bzzv3
md5
4a21d9ee10307db6bcdec3cb5825a2cc
sha1
101655ba8d762dd1614da2ec687928db7c35c0a0
sha256
0e57baf23fed545a22ec250706983f05f1530130346b51f584500206a772e8cd
sha512
c0ecd0bc7947df2233745ff71b32f619fae88ee2890c13affc097d035139acefcb589879f70cbf0d2ea0ed7594e85eb79b68b23dfe8a73dd86130f1a79898766
ripemd-160
825c21d1e2926e5310b9d5ccfde66de31dc3a6e9
Diameter
40310430
Circumference
126638950.75105
Area
1.2762176398809E+15
Volume
3.4296587891455E+22
Surface area
5.1048705595235E+15
Circumference
126638950.75105
Perimeter
80620860
Area
406232691696225
Diagonal
28503778.405546
Surface area
2437396150177350
Volume
8.1877072411661E+21
Space diagonal
34909856.417474
Perimeter
60465645
Area
1.7590391542833E+14
Altitude
17454928.208737
Surface area
1.7590391542833E+14
Volume
9.6493055209979E+20
Height
9501259.4685152