123042987 is an odd 9-digits composite number following 123042986
and preceding 123042988 . In scientific notation, it is written as 1.23042987 × 10^8.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 82028652 positive integers (up to 123042987) that are relatively prime to 123042987.
123042987 has 4 divisors, whose sum is 136714440
The reverse of 123042987 is 789240321
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
one hundred twenty-three million forty-two thousand nine hundred eighty-seven
Scientific notation
1.23042987 × 10^8
Engineering notation
1.23042987 × 10^6
Prime Factorization
9 × 13671443
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
123042987
Product of the distinct prime numbers
The prime factorization of 123042987 is 9 × 13671443.
Since it has a total of 2 prime factors.
7 , 2 , 84 , 80 , 81 , 557 , 1730 , 2067 , 99510 , 51437 , 310818 , 688641 , 9832946 , 9341212 , 99877686 , 89509924 , 358107614 , 449875148 , 2069670163 , 4436038169
n×2
246085974
n×3
369128961
n×4
492171948
n×5
615214935
n÷2
61521493.5
n÷3
41014329
n÷3
30760746.75
n÷5
24608597.4
n2
15139576649882169
n3
1.862818732917E+24
n4
2.2920678113766E+32
n5
2.8202286991833E+40
2 √n
11092.474340741
3 √n
497.37691221884
4 √n
105.32081627457
5 √n
41.496490940748
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
-123042986
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 123042987 can be divided by 4 positive divisors.
The sum of these divisors (counting 123042987) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010101010111110010101011
3
Ternary
22120112020020200
4
Quaternary
13111113302223
5
Quinary
222444333422
6
Senary
20113123243
8
Octal
725276253
10
Decimal
123042987
12
Duodecimal
35259523
16
Hexadecimal
7557cab
20
Vigesimal
1i90797
36
Base36
2198kr
md5
bfb3cfa82efa3cced7b81406c224cb30
sha1
f4ae7853683a5b5b2471c4bdb4d884fbfb79c5ae
sha256
d13c1b53153f40786851be6bf27d9639abfd8387ba4a3847575edaf4cf86961c
sha512
39222c30b997a0d52900080e4aa9c7d852a9233437e4daafbb14f8f1cfba8ae65521845bb0e8451b15c0cd95fa10e5e3ced5c7573c381959fb89b67519eb33ed
ripemd-160
f745812d403bc8dcf63c066f1dcaa52a646d8e2d
Diameter
246085974
Circumference
773101888.06989
Area
4.7562382781729E+16
Volume
7.8029568617351E+24
Surface area
1.9024953112692E+17
Circumference
773101888.06989
Perimeter
492171948
Area
15139576649882169
Diagonal
174009060.9703
Surface area
90837459899293014
Volume
1.862818732917E+24
Space diagonal
213116704.99904
Perimeter
369128961
Area
6.5556289906698E+15
Altitude
106558352.49952
Surface area
6.5556289906698E+15
Volume
2.1953529302782E+23
Height
58003020.323432