121900979 is an odd 9-digits composite number following 121900978
and preceding 121900980 . In scientific notation, it is written as 1.21900979 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 115485120 positive integers (up to 121900979) that are relatively prime to 121900979.
121900979 has 4 divisors, whose sum is 128316840
The reverse of 121900979 is 979009121
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-one million nine hundred thousand nine hundred seventy-nine
Scientific notation
1.21900979 × 10^8
Engineering notation
1.21900979 × 10^6
Prime Factorization
19 × 6415841
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121900979
Product of the distinct prime numbers
The prime factorization of 121900979 is 19 × 6415841.
Since it has a total of 2 prime factors.
10 , 7 , 49 , 67 , 665 , 890 , 5270 , 6890 , 75625 , 30193 , 324338 , 73626 , 7167052 , 9077818 , 838571 , 89278526 , 822222627 , 3947660 , 189830451 , 3087953425
n×2
243801958
n×3
365702937
n×4
487603916
n×5
609504895
n÷2
60950489.5
n÷3
40633659.666667
n÷3
30475244.75
n÷5
24380195.8
n2
14859848681158441
n3
1.8114301020251E+24
n4
2.2081510282693E+32
n5
2.6917577212588E+40
2 √n
11040.877637217
3 √n
495.83334644603
4 √n
105.07558059424
5 √n
41.419174472462
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121900978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121900979 can be divided by 4 positive divisors.
The sum of these divisors (counting 121900979) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010001000000111110110011
3
Ternary
22111101012201002
4
Quaternary
13101000332303
5
Quinary
222201312404
6
Senary
20032432215
8
Octal
721007663
10
Decimal
121900979
12
Duodecimal
349a866b
16
Hexadecimal
7440fb3
20
Vigesimal
1i1hc8j
36
Base36
20kreb
md5
71715292421fc6cdd135035f711333ae
sha1
35267ed3ec0f8c2281874dc6dd88f75f209ea7ef
sha256
0923f109bdc7cb3813ca2461cdc6014ee9e2b5f067309daa56d7cad8d0346178
sha512
fe464f9b563ac58179fa7c0eb25f522c0f7b377afa65da0af0811fa5e59887c47a1e0bbe1b6f088d6d2377ac7152b23e2dfc6902a3f2d5aec14804b3f79367f6
ripemd-160
2860af22e2954b3a10036dbf657d3870a10499aa
Diameter
243801958
Circumference
765926440.18361
Area
4.6683591450183E+16
Volume
7.5877006680178E+24
Surface area
1.8673436580073E+17
Circumference
765926440.18361
Perimeter
487603916
Area
14859848681158441
Diagonal
172394017.76836
Surface area
89159092086950646
Volume
1.8114301020251E+24
Space diagonal
211138689.12039
Perimeter
365702937
Area
6.4345032271379E+15
Altitude
105569344.56019
Surface area
6.4345032271379E+15
Volume
2.1347908479789E+23
Height
57464672.589453