121998431 is an odd 9-digits prime number following 121998430
and preceding 121998432 . In scientific notation, it is written as 1.21998431 × 10^8.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 121998430 positive integers (up to 121998431) that are relatively prime to 121998431.
121998431 has 2 divisors, whose sum is 121998432
The reverse of 121998431 is 134899121
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred twenty-one million nine hundred ninety-eight thousand four hundred thirty-one
Scientific notation
1.21998431 × 10^8
Engineering notation
1.21998431 × 10^6
Prime Factorization
121998431
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
121998431 Product of the distinct prime numbers
The prime factorization of 121998431 is 121998431.
Since it has a total of 1 prime factors.
1 , 5 , 56 , 36 , 882 , 388 , 5944 , 1039 , 15834 , 77879 , 157913 , 748495 , 6114797 , 4416107 , 3281364 , 29982662 , 307034074 , 430661043 , 866558809 , 576479451
n×2
243996862
n×3
365995293
n×4
487993724
n×5
609992155
n÷2
60999215.5
n÷3
40666143.666667
n÷3
30499607.75
n÷5
24399686.2
n2
14883617166461761
n3
1.815777941913E+24
n4
2.215220599578E+32
n5
2.7025343746739E+40
2 √n11045.289991666
3 √n495.96544021907
4 √n105.0965745953
5 √n41.425794749529
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
121998432 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
60999216 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11045.290036934 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999836063 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121998431 can be divided by 2 positive divisors.
The sum of these divisors (counting 121998431) is 121998432, the average is 60999216.
Base
System
Value
2
Binary
111010001011000110001011111
3
Ternary
22111120011101102
4
Quaternary
13101120301133
5
Quinary
222212422211
6
Senary
20034503315
8
Octal
721306137
10
Decimal
121998431
12
Duodecimal
34a34b3b
16
Hexadecimal
7458c5f
20
Vigesimal
1i29g1b
36
Base36
20mulb
md5
2338399dadcacdde185356f7b2749ea5
sha1
bfee9aec9efe2d304ef043a78c392905ef6d751d
sha256
d35ba7ae0b1b7988bc1b73124b3df8b4f6ad628653cf4ea5f64e6ffea87f4b3a
sha512
37a65e9e7d3cb0e71e074419958147e9cb7982779182c11ccd3ee73c0e7601436806505c4e0d68f6f1ac00daadcea65ab5dc4e7da50bc510a2ccebcb4bc4f82d
ripemd-160
2a248e4d70be55dc7638b2aeeee6670e85c670e8
Diameter
243996862
Circumference
766538749.15816
Area
4.6758262348999E+16
Volume
7.6059128571524E+24
Surface area
1.87033049396E+17
Circumference
766538749.15816
Perimeter
487993724
Area
14883617166461761
Diagonal
172531835.70844
Surface area
89301702998770566
Volume
1.815777941913E+24
Space diagonal
211307480.93569
Perimeter
365995293
Area
6.444795283179E+15
Altitude
105653740.46784
Surface area
6.444795283179E+15
Volume
2.1399148264261E+23
Height
57510611.902813