121961640 is an even 9-digits composite number following 121961639
and preceding 121961641 . In scientific notation, it is written as 1.21961640 × 10^8.
The sum of its digits is 30. It has a total of 5 prime factors and 16 positive divisors.
There are 31108352 positive integers (up to 121961640) that are relatively prime to 121961640.
121961640 has 16 divisors, whose sum is 229346100
The reverse of 121961640 is 046169121
Previous prime number is 345
Is Prime? no
Number parity even
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred twenty-one million nine hundred sixty-one thousand six hundred forty
Scientific notation
1.21961640 × 10^8
Engineering notation
1.21961640 × 10^6
Prime Factorization
2 × 2 × 2 × 345 × 44189
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
30490410
Product of the distinct prime numbers
The prime factorization of 121961640 is 2 × 2 × 2 × 345 × 44189.
Since it has a total of 5 prime factors.
6 , 5 , 40 , 21 , 209 , 528 , 1889 , 3941 , 95802 , 3697 , 649111 , 264896 , 9660992 , 1211828 , 14331672 , 93473274 , 939001175 , 264515748 , 7689200405 , 7181225846
n×2
243923280
n×3
365884920
n×4
487846560
n×5
609808200
n÷2
60980820
n÷3
40653880
n÷3
30490410
n÷5
24392328
n2
14874641631489600
n3
1.8141356877887E+24
n4
2.2125496366524E+32
n5
2.6984618226754E+40
2 √n
11043.624405058
3 √n
495.91557919785
4 √n
105.08865021998
5 √n
41.423295897234
1 , 2 , 4 , 8 , 345 , 690 , 1380 , 2760 , 44189 , 88378 , 176756 , 353512 , 15245205 , 30490410 , 60980820 , 121961640
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121961639
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121961640 can be divided by 16 positive divisors.
The sum of these divisors (counting 121961640) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010001001111110010101000
3
Ternary
22111111021220210
4
Quaternary
13101033302220
5
Quinary
222210233030
6
Senary
20034021120
8
Octal
721176250
10
Decimal
121961640
12
Duodecimal
34a177a0
16
Hexadecimal
744fca8
20
Vigesimal
1i25420
36
Base36
20m27c
md5
3d6a77591f768665e4184434d59cebc4
sha1
4ba942de7c2e411183a89d13ea642808b8ea509c
sha256
41ae938a310665917fb5e75a3e5e3185fff2edb3f5b84883d40fb600a40e5fb5
sha512
24e14b699f1c4ec927baa8c3028ab9f5e527bda508b71171db6bf2c64257b3a1c9a756d8345748681bdae2aeab3b682f3a9a5cc34fe69a4827c131b64fb3c624
ripemd-160
34eeae254ff8246660e6564be2e9410fea2325bc
Diameter
243923280
Circumference
766307584.48753
Area
4.6730064874269E+16
Volume
7.5990337991629E+24
Surface area
1.8692025949707E+17
Circumference
766307584.48753
Perimeter
487846560
Area
14874641631489600
Diagonal
172479805.37726
Surface area
89247849788937600
Volume
1.8141356877887E+24
Space diagonal
211243757.05442
Perimeter
365884920
Area
6.4409087625298E+15
Altitude
105621878.52721
Surface area
6.4409087625298E+15
Volume
2.1379794113799E+23
Height
57493268.459088