155111890 is an even 9-digits composite number following 155111889
and preceding 155111891 . In scientific notation, it is written as 1.55111890 × 10^8.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 61729024 positive integers (up to 155111890) that are relatively prime to 155111890.
155111890 has 16 divisors, whose sum is 280622232
The reverse of 155111890 is 098111551
Previous prime number is 197
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred fifty-five million one hundred eleven thousand eight hundred ninety
Scientific notation
1.55111890 × 10^8
Engineering notation
1.55111890 × 10^6
Prime Factorization
2 × 5 × 197 × 78737
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
155111890
Product of the distinct prime numbers
The prime factorization of 155111890 is 2 × 5 × 197 × 78737.
Since it has a total of 4 prime factors.
8 , 1 , 91 , 16 , 7 , 923 , 8690 , 6045 , 75135 , 57559 , 722299 , 568042 , 927999 , 4404937 , 12627472 , 53888688 , 308160209 , 143468753 , 9625029172 , 5654056100
n×2
310223780
n×3
465335670
n×4
620447560
n×5
775559450
n÷2
77555945
n÷3
51703963.333333
n÷3
38777972.5
n÷5
31022378
n2
24059698419372100
n3
3.7319452946588E+24
n4
5.7886908803114E+32
n5
8.9789478307086E+40
2 √n
12454.392397865
3 √n
537.29775986188
4 √n
111.59924909185
5 √n
43.46393253681
1 , 2 , 5 , 10 , 197 , 394 , 985 , 1970 , 78737 , 157474 , 393685 , 787370 , 15511189 , 31022378 , 77555945 , 155111890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-155111889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 155111890 can be divided by 16 positive divisors.
The sum of these divisors (counting 155111890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001001111101101000111010010
3
Ternary
101210212111111211
4
Quaternary
21033231013102
5
Quinary
304202040030
6
Senary
23220330334
8
Octal
1117550722
10
Decimal
155111890
12
Duodecimal
43b439aa
16
Hexadecimal
93ed1d2
20
Vigesimal
2898jea
36
Base36
2kcl3m
md5
94c8488fa87f442cd04f313ea344a310
sha1
75c00352b5c317fa6fb777da5e280ee57c4d0e3d
sha256
87a371d22a05b88861f51a2ad4203ba40d2d8a346ce91c4e7b3cdd1f3ffc19de
sha512
07bdbcc4217f3c3218850471c9c3b41afd90432526080638ea9c8770bd51eb0f08ae38ef972230c255e8ae60d694f2a754e8201c78eb75b83b2e1b0f84cd42cc
ripemd-160
db48a6560588d7416c9f76411da8a9e8d24ee027
Diameter
310223780
Circumference
974596748.21686
Area
7.5585771801885E+16
Volume
1.5632335895066E+25
Surface area
3.0234308720754E+17
Circumference
974596748.21686
Perimeter
620447560
Area
24059698419372100
Diagonal
219361338.52332
Surface area
144358190516232600
Volume
3.7319452946588E+24
Space diagonal
268661674.33803
Perimeter
465335670
Area
1.0418155019284E+16
Altitude
134330837.16902
Surface area
1.0418155019284E+16
Volume
4.3981397081175E+23
Height
73120446.174441