121539257 is an odd 9-digits composite number following 121539256
and preceding 121539258 . In scientific notation, it is written as 1.21539257 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 98692776 positive integers (up to 121539257) that are relatively prime to 121539257.
121539257 has 12 divisors, whose sum is 148824720
The reverse of 121539257 is 752935121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-one million five hundred thirty-nine thousand two hundred fifty-seven
Scientific notation
1.21539257 × 10^8
Engineering notation
1.21539257 × 10^6
Prime Factorization
19 × 7 × 7 × 130547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
17362751
Product of the distinct prime numbers
The prime factorization of 121539257 is 19 × 7 × 7 × 130547.
Since it has a total of 4 prime factors.
7 , 9 , 91 , 71 , 36 , 72 , 6146 , 6062 , 55723 , 38116 , 814090 , 463728 , 1294241 , 441871 , 39993970 , 79417737 , 590131288 , 753306082 , 2320396899 , 9544181681
n×2
243078514
n×3
364617771
n×4
486157028
n×5
607696285
n÷2
60769628.5
n÷3
40513085.666667
n÷3
30384814.25
n÷5
24307851.4
n2
14771790992112049
n3
1.7953525017406E+24
n4
2.1820580911464E+32
n5
2.6520571912877E+40
2 √n
11024.48443239
3 √n
495.34242470041
4 √n
104.99754488744
5 √n
41.394564265982
1 , 7 , 19 , 49 , 133 , 931 , 130547 , 913829 , 2480393 , 6396803 , 17362751 , 121539257
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121539256
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121539257 can be divided by 12 positive divisors.
The sum of these divisors (counting 121539257) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111001111101000101010111001
3
Ternary
22110200211111222
4
Quaternary
13033220222321
5
Quinary
222103224012
6
Senary
20021001425
8
Octal
717505271
10
Decimal
121539257
12
Duodecimal
34853275
16
Hexadecimal
73e8ab9
20
Vigesimal
1hjc82h
36
Base36
20d0ah
md5
8d87bf60815317f9cb8d5776eafaca76
sha1
0d435091de5ee1cdf841b9383d40ab03bb062681
sha256
0828afff9b79b98012087364684e254f88bf315bde48b89d99910f868c2f2a82
sha512
92455950d1f70e6136fcfbbb6ea503fe13b5773b49086fa20e5a22112ab8a854547f83cce4a9cb5720655f8315df9ceb08b21a8e3ab9d74edaae304f05276e43
ripemd-160
0bb287285f44219d959e04f629d3b44273534fe2
Diameter
243078514
Circumference
763653673.82792
Area
4.6406950061183E+16
Volume
7.5203549734297E+24
Surface area
1.8562780024473E+17
Circumference
763653673.82792
Perimeter
486157028
Area
14771790992112049
Diagonal
171882465.61015
Surface area
88630745952672294
Volume
1.7953525017406E+24
Space diagonal
210512168.23817
Perimeter
364617771
Area
6.3963731292816E+15
Altitude
105256084.11909
Surface area
6.3963731292816E+15
Volume
2.115843214335E+23
Height
57294155.203383