121997908 is an even 9-digits composite number following 121997907
and preceding 121997909 . In scientific notation, it is written as 1.21997908 × 10^8.
The sum of its digits is 46. It has a total of 3 prime factors and 6 positive divisors.
There are 60998952 positive integers (up to 121997908) that are relatively prime to 121997908.
121997908 has 6 divisors, whose sum is 213496346
The reverse of 121997908 is 809799121
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred twenty-one million nine hundred ninety-seven thousand nine hundred eight
Scientific notation
1.21997908 × 10^8
Engineering notation
1.21997908 × 10^6
Prime Factorization
2 × 2 × 30499477
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
60998954
Product of the distinct prime numbers
The prime factorization of 121997908 is 2 × 2 × 30499477.
Since it has a total of 3 prime factors.
2 , 1 , 23 , 1 , 216 , 769 , 1734 , 2595 , 69400 , 88657 , 777013 , 189287 , 1778681 , 6456017 , 66318968 , 71123071 , 920659713 , 801329791 , 9028632033 , 4820683024
n×2
243995816
n×3
365993724
n×4
487991632
n×5
609989540
n÷2
60998954
n÷3
40665969.333333
n÷3
30499477
n÷5
24399581.6
n2
14883489556376464
n3
1.8157545896178E+24
n4
2.2151826137477E+32
n5
2.7024764471519E+40
2 √n
11045.266316391
3 √n
495.9647314933
4 √n
105.09646195943
5 √n
41.425759231486
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121997907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121997908 can be divided by 6 positive divisors.
The sum of these divisors (counting 121997908) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111010001011000101001010100
3
Ternary
22111120010200001
4
Quaternary
13101120221110
5
Quinary
222212413113
6
Senary
20034501044
8
Octal
721305124
10
Decimal
121997908
12
Duodecimal
34a34784
16
Hexadecimal
7458a54
20
Vigesimal
1i29ef8
36
Base36
20mu6s
md5
21b67d0546066084fb5da9b1e6117e22
sha1
12a323d6a80881b51e3717b5bcbc3a5eb6da8089
sha256
5fd302247726617f0056915f9ea9c4b611f8d1a1168405be819772fb8b4f3a2c
sha512
284e7bdcc3ffaf9d76518d4b3f041aa70232056fe9c2c7d82d7fd6cb6b818d851d388f007a230b6960c2bcfe974a856ad09b9e25df1d8e368e75efada5d13a8f
ripemd-160
8502d30fcc18c92b8fbdebe53f4f7c64dd83dd45
Diameter
243995816
Circumference
766535463.05225
Area
4.6757861450093E+16
Volume
7.6058150392869E+24
Surface area
1.8703144580037E+17
Circumference
766535463.05225
Perimeter
487991632
Area
14883489556376464
Diagonal
172531096.07475
Surface area
89300937338258784
Volume
1.8157545896178E+24
Space diagonal
211306575.07311
Perimeter
365993724
Area
6.4447400263912E+15
Altitude
105653287.53656
Surface area
6.4447400263912E+15
Volume
2.1398873054822E+23
Height
57510365.358248