123057981 is an odd 9-digits composite number following 123057980
and preceding 123057982 . In scientific notation, it is written as 1.23057981 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 77338800 positive integers (up to 123057981) that are relatively prime to 123057981.
123057981 has 16 divisors, whose sum is 135088128
The reverse of 123057981 is 189750321
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
one hundred twenty-three million fifty-seven thousand nine hundred eighty-one
Scientific notation
1.23057981 × 10^8
Engineering notation
1.23057981 × 10^6
Prime Factorization
27 × 23 × 71 × 2791
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
123057981
Product of the distinct prime numbers
The prime factorization of 123057981 is 27 × 23 × 71 × 2791.
Since it has a total of 4 prime factors.
10 , 7 , 36 , 87 , 600 , 884 , 7540 , 6028 , 94047 , 86265 , 909882 , 213682 , 1290081 , 2584994 , 98970237 , 83831127 , 211298295 , 930241270 , 8014621298 , 5449663931
n×2
246115962
n×3
369173943
n×4
492231924
n×5
615289905
n÷2
61528990.5
n÷3
41019327
n÷3
30764495.25
n÷5
24611596.2
n2
15143266687796361
n3
1.8634998243448E+24
n4
2.2931852597772E+32
n5
2.8219474812715E+40
2 √n
11093.150183785
3 √n
497.39711482362
4 √n
105.32402472268
5 √n
41.49750224269
1 , 23 , 27 , 71 , 621 , 1633 , 1917 , 2791 , 44091 , 64193 , 75357 , 198161 , 1733211 , 4557703 , 5350347 , 123057981
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
-123057980
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 123057981 can be divided by 16 positive divisors.
The sum of these divisors (counting 123057981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010101011011011100111101
3
Ternary
22120112222211000
4
Quaternary
13111123130331
5
Quinary
223000323411
6
Senary
20113320513
8
Octal
725333475
10
Decimal
123057981
12
Duodecimal
35266139
16
Hexadecimal
755b73d
20
Vigesimal
1i924j1
36
Base36
219k59
md5
c6c31558c57466d894cec2738eeea04c
sha1
c13ac9d392234e3e78907f012460dfc47c0a9bea
sha256
a9d5c1721320719cc29971bb73bfe1fad983b61910bc0b88bdd66f78853638b2
sha512
b1ab7410d61e56c6332e8105547e38a654427e48bcbc3af537281addc7cf30433b3ad93d944b030e36f7c7c9131950fda3703fe59707b9991a6cfcfb8d190f72
ripemd-160
d407f1a510fe5e9dcd2e2f959a642825c86b9175
Diameter
246115962
Circumference
773196098.15038
Area
4.7573975377732E+16
Volume
7.8058098108366E+24
Surface area
1.9029590151093E+17
Circumference
773196098.15038
Perimeter
492231924
Area
15143266687796361
Diagonal
174030265.68845
Surface area
90859600126778166
Volume
1.8634998243448E+24
Space diagonal
213142675.36885
Perimeter
369173943
Area
6.5572268239571E+15
Altitude
106571337.68442
Surface area
6.5572268239571E+15
Volume
2.1961556042236E+23
Height
58010088.562817