155215231 is an odd 9-digits prime number following 155215230
and preceding 155215232 . In scientific notation, it is written as 1.55215231 × 10^8.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 155215230 positive integers (up to 155215231) that are relatively prime to 155215231.
155215231 has 2 divisors, whose sum is 155215232
The reverse of 155215231 is 132512551
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 25 Digital Root 7
Name
one hundred fifty-five million two hundred fifteen thousand two hundred thirty-one
Scientific notation
1.55215231 × 10^8
Engineering notation
1.55215231 × 10^6
Prime Factorization
155215231
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
155215231 Product of the distinct prime numbers
The prime factorization of 155215231 is 155215231.
Since it has a total of 1 prime factors.
4 , 5 , 39 , 48 , 605 , 642 , 7860 , 7062 , 36916 , 19157 , 228663 , 399983 , 4455383 , 2384331 , 63614390 , 8408223 , 960014650 , 813302031 , 3487042752 , 192092564
n×2
310430462
n×3
465645693
n×4
620860924
n×5
776076155
n÷2
77607615.5
n÷3
51738410.333333
n÷3
38803807.75
n÷5
31043046.2
n2
24091767934383361
n3
3.7394093251337E+24
n4
5.8041328220418E+32
n5
9.008898167279E+40
2 √n12458.540484342
3 √n537.41705559841
4 √n111.61783228652
5 √n43.469722434341
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
155215232 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
77607616 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12458.540524476 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999871147 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 155215231 can be divided by 2 positive divisors.
The sum of these divisors (counting 155215231) is 155215232, the average is 77607616.
Base
System
Value
2
Binary
1001010000000110010101111111
3
Ternary
101211001202021021
4
Quaternary
21100012111333
5
Quinary
304213341411
6
Senary
23222445011
8
Octal
1120062577
10
Decimal
155215231
12
Duodecimal
43b93767
16
Hexadecimal
940657f
20
Vigesimal
28a1i1b
36
Base36
2kesu7
md5
5507cb85e0716bf5ad1b353f32113d4a
sha1
b080b72f906e0c0df4f88107ed3c4cf996f464ad
sha256
75beda2d5f51b21ebca7165ea00920a8282f5b800cc84d4aeb44c1ee85e2c4e2
sha512
9fe486d2c61fa39e3fca2855c2eba4bb33b68bc701a2e7459fc9d7d6cb65bae0d2364cbe29ea8bad481d471153dcb05b9bc471d383effabd43ab2c96be9d08bf
ripemd-160
5ae450d7a3b9c0a5a8b0c0c61eb8ca6f3cbcf89d
Diameter
310430462
Circumference
975246058.86969
Area
7.5686521154649E+16
Volume
1.5663601152807E+25
Surface area
3.027460846186E+17
Circumference
975246058.86969
Perimeter
620860924
Area
24091767934383361
Diagonal
219507484.76707
Surface area
144550607606300166
Volume
3.7394093251337E+24
Space diagonal
268840666.20054
Perimeter
465645693
Area
1.0432041526628E+16
Altitude
134420333.10027
Surface area
1.0432041526628E+16
Volume
4.4069361523904E+23
Height
73169161.589024