121998155 is an odd 9-digits composite number following 121998154
and preceding 121998156 . In scientific notation, it is written as 1.21998155 × 10^8.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 97559008 positive integers (up to 121998155) that are relatively prime to 121998155.
121998155 has 8 divisors, whose sum is 146457072
The reverse of 121998155 is 551899121
Previous prime number is 4877
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred twenty-one million nine hundred ninety-eight thousand one hundred fifty-five
Scientific notation
1.21998155 × 10^8
Engineering notation
1.21998155 × 10^6
Prime Factorization
5 × 4877 × 5003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
121998155
Product of the distinct prime numbers
The prime factorization of 121998155 is 5 × 4877 × 5003.
Since it has a total of 3 prime factors.
2 , 4 , 76 , 47 , 274 , 271 , 1192 , 7074 , 39600 , 44676 , 453973 , 392529 , 6125302 , 5475623 , 58247175 , 4570340 , 547513490 , 915346124 , 2347466208 , 7004851681
n×2
243996310
n×3
365994465
n×4
487992620
n×5
609990775
n÷2
60999077.5
n÷3
40666051.666667
n÷3
30499538.75
n÷5
24399631
n2
14883549823404025
n3
1.8157656183059E+24
n4
2.2152005534575E+32
n5
2.7025038047679E+40
2 √n
11045.277497646
3 √n
495.96506620726
4 √n
105.09651515462
5 √n
41.425776005797
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
-121998154
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 121998155 can be divided by 8 positive divisors.
The sum of these divisors (counting 121998155) is 1, the average is 0.125.
Base
System
Value
2
Binary
111010001011000101101001011
3
Ternary
22111120011000012
4
Quaternary
13101120231023
5
Quinary
222212420110
6
Senary
20034502135
8
Octal
721305513
10
Decimal
121998155
12
Duodecimal
34a3494b
16
Hexadecimal
7458b4b
20
Vigesimal
1i29f7f
36
Base36
20mudn
md5
59c544337a8726320dfc077962c777dc
sha1
9d52bd04e25574d9d3d250e9875a4ac9816124b8
sha256
1e8034f6e43954ddccfd8e821eedeafd1d442312e924953ea61c9d84e6ec6fba
sha512
0cc79e5da7c46c52d875132a4edf2eaa139adb70a039d1c8f969d127c569bb494f080dca0a6252dd7d92ff3325b6313dd85e024653e34a21de694c4be2d300ad
ripemd-160
7207d4ac559522d6aa967bbb04788d0d9a39f6c2
Diameter
243996310
Circumference
766537014.99902
Area
4.6758050784544E+16
Volume
7.6058612361475E+24
Surface area
1.8703220313817E+17
Circumference
766537014.99902
Perimeter
487992620
Area
14883549823404025
Diagonal
172531445.3855
Surface area
89301298940424150
Volume
1.8157656183059E+24
Space diagonal
211307002.88966
Perimeter
365994465
Area
6.4447661227796E+15
Altitude
105653501.44483
Surface area
6.4447661227796E+15
Volume
2.1399003029158E+23
Height
57510481.795165