121998457 is an odd 9-digits composite number following 121998456
and preceding 121998458 . In scientific notation, it is written as 1.21998457 × 10^8.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 104570100 positive integers (up to 121998457) that are relatively prime to 121998457.
121998457 has 4 divisors, whose sum is 139426816
The reverse of 121998457 is 754899121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred twenty-one million nine hundred ninety-eight thousand four hundred fifty-seven
Scientific notation
1.21998457 × 10^8
Engineering notation
1.21998457 × 10^6
Prime Factorization
7 × 17428351
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121998457
Product of the distinct prime numbers
The prime factorization of 121998457 is 7 × 17428351.
Since it has a total of 2 prime factors.
2 , 7 , 64 , 30 , 459 , 67 , 4106 , 6693 , 44833 , 44185 , 653048 , 729535 , 3778481 , 3594883 , 57895304 , 26627423 , 75670115 , 291902583 , 2475735176 , 5056251326
n×2
243996914
n×3
365995371
n×4
487993828
n×5
609992285
n÷2
60999228.5
n÷3
40666152.333333
n÷3
30499614.25
n÷5
24399691.4
n2
14883623510380849
n3
1.8157791028354E+24
n4
2.2152224879876E+32
n5
2.7025372544619E+40
2 √n
11045.291168638
3 √n
495.96547545204
4 √n
105.09658019478
5 √n
41.425796515241
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
-121998456
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 121998457 can be divided by 4 positive divisors.
The sum of these divisors (counting 121998457) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010001011000110001111001
3
Ternary
22111120011102101
4
Quaternary
13101120301321
5
Quinary
222212422312
6
Senary
20034503401
8
Octal
721306171
10
Decimal
121998457
12
Duodecimal
34a34b61
16
Hexadecimal
7458c79
20
Vigesimal
1i29g2h
36
Base36
20mum1
md5
34547ad5ed6e6e5e667b998a5198ab51
sha1
86a604eb2d6049dc677af4362d6b593358210c8e
sha256
32eab3396185c5e5089b2b2929145e2941c3b3480a1e1da3f4a7bf09ffdeba30
sha512
c22a89ac201fbfea24d6acdda6ee0cffd6d5c9a13b1921666a087f8d204986690521de85154792ae96d02dab7ad0b89d4e1460920517b48629e8b219f7e335b5
ripemd-160
fdc16514bd5d4adaade88415899ed9c330823b44
Diameter
243996914
Circumference
766538912.52098
Area
4.6758282279009E+16
Volume
7.6059177200127E+24
Surface area
1.8703312911604E+17
Circumference
766538912.52098
Perimeter
487993828
Area
14883623510380849
Diagonal
172531872.47799
Surface area
89301741062285094
Volume
1.8157791028354E+24
Space diagonal
211307525.96901
Perimeter
365995371
Area
6.4447980301766E+15
Altitude
105653762.9845
Surface area
6.4447980301766E+15
Volume
2.1399161945862E+23
Height
57510624.15933