2155255 is an odd 7-digits composite number following 2155254
and preceding 2155256 . In scientific notation, it is written as 2.155255 × 10^6.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 1724200 positive integers (up to 2155255) that are relatively prime to 2155255.
2155255 has 4 divisors, whose sum is 2586312
The reverse of 2155255 is 5525512
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 25
Digital Root 7
Name
two million one hundred fifty-five thousand two hundred fifty-five
Scientific notation
2.155255 × 10^6
Engineering notation
2.155255 × 10^6
Prime Factorization
5 × 431051
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2155255
Product of the distinct prime numbers
The prime factorization of 2155255 is 5 × 431051.
Since it has a total of 2 prime factors.
6 , 5 , 51 , 30 , 358 , 731 , 3579 , 793 , 13142 , 52512 , 706181 , 930915 , 3939924 , 9494209 , 97784329 , 22700592 , 605319998 , 587373620 , 4285531439 , 9706694180
n×2
4310510
n×3
6465765
n×4
8621020
n×5
10776275
n÷2
1077627.5
n÷3
718418.33333333
n÷3
538813.75
n÷5
431051
n2
4645124115025
n3
1.0011426974528E+19
n4
2.1577178043987E+25
n5
4.6504320865193E+31
2 √n
1468.0786763658
3 √n
129.17135651835
4 √n
38.315514825796
5 √n
18.479904912951
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
-2155254
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 2155255 can be divided by 4 positive divisors.
The sum of these divisors (counting 2155255) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000001110001011110111
3
Ternary
11001111110021
4
Quaternary
20032023313
5
Quinary
1022432010
6
Senary
114110011
8
Octal
10161367
10
Decimal
2155255
12
Duodecimal
87b307
16
Hexadecimal
20e2f7
20
Vigesimal
d982f
36
Base36
1a707
md5
ec7ff593623b0f381d1a287371a0d085
sha1
077d96306dce65ac8f46ea9d7295fe25a85291df
sha256
dbad1cddbdf90cb09491f383ce18af4492af27bfeeaad01c195cd7fee9068a80
sha512
9963c92869b593db31b372352969ac11ee3fcc6efa94f05eb52da7a1f85957e906260017b72c37cf064a4b03593875e2855f2fcab9dd3674faa8e3089f475717
ripemd-160
23e2009e07f50ac16464174b4625e4a93329964a
Diameter
4310510
Circumference
13541866.549225
Area
14593087794775
Volume
4.1935767246838E+19
Surface area
58372351179101
Circumference
13541866.549225
Perimeter
8621020
Area
4645124115025
Diagonal
3047990.8513724
Surface area
27870744690150
Volume
1.0011426974528E+19
Space diagonal
3733011.1632669
Perimeter
6465765
Area
2011397743671.7
Altitude
1866505.5816334
Surface area
2011397743671.7
Volume
1.1798579838405E+18
Height
1015996.9504575