121998154 is an even 9-digits composite number following 121998153
and preceding 121998155 . In scientific notation, it is written as 1.21998154 × 10^8.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 57410880 positive integers (up to 121998154) that are relatively prime to 121998154.
121998154 has 8 divisors, whose sum is 193761828
The reverse of 121998154 is 451899121
Previous prime number is 17
Is Prime? no
Number parity even
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-one million nine hundred ninety-eight thousand one hundred fifty-four
Scientific notation
1.21998154 × 10^8
Engineering notation
1.21998154 × 10^6
Prime Factorization
2 × 17 × 3588181
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
121998154
Product of the distinct prime numbers
The prime factorization of 121998154 is 2 × 17 × 3588181.
Since it has a total of 3 prime factors.
9 , 7 , 50 , 39 , 931 , 140 , 3583 , 4597 , 74305 , 48982 , 471587 , 842523 , 6542323 , 4575482 , 29168073 , 8162528 , 780258403 , 28781680 , 3883598251 , 3900761587
n×2
243996308
n×3
365994462
n×4
487992616
n×5
609990770
n÷2
60999077
n÷3
40666051.333333
n÷3
30499538.5
n÷5
24399630.8
n2
14883549579407716
n3
1.8157655736552E+24
n4
2.2152004808269E+32
n5
2.7025036940079E+40
2 √n
11045.277452378
3 √n
495.96506485214
4 √n
105.09651493926
5 √n
41.425775937885
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
-121998153
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 121998154 can be divided by 8 positive divisors.
The sum of these divisors (counting 121998154) is 1, the average is 0.125.
Base
System
Value
2
Binary
111010001011000101101001010
3
Ternary
22111120011000011
4
Quaternary
13101120231022
5
Quinary
222212420104
6
Senary
20034502134
8
Octal
721305512
10
Decimal
121998154
12
Duodecimal
34a3494a
16
Hexadecimal
7458b4a
20
Vigesimal
1i29f7e
36
Base36
20mudm
md5
095d8cab88e3530782cefae30e6bb469
sha1
468cf17d3cd9146a6d7e34430f0c29a16f9ac1a1
sha256
d0c49377f21a410d14aeae94055795e6fcd8a4e44633e5768c58a903e8c63ec6
sha512
661394d86472aecd16c5d33e67ca3d5836efdafe71f8f720fdc0b884d0dba8a3eb500730f1a473b88a922f1f88c1228198639e7f46f97070fb55553279408a9b
ripemd-160
300932ef78749f460be1a416e94c102801da88c3
Diameter
243996308
Circumference
766537008.71583
Area
4.6758050018007E+16
Volume
7.6058610491153E+24
Surface area
1.8703220007203E+17
Circumference
766537008.71583
Perimeter
487992616
Area
14883549579407716
Diagonal
172531443.97128
Surface area
89301297476446296
Volume
1.8157655736552E+24
Space diagonal
211307001.15761
Perimeter
365994462
Area
6.4447660171261E+15
Altitude
105653500.57881
Surface area
6.4447660171261E+15
Volume
2.1399002502945E+23
Height
57510481.32376