123720105 is an odd 9-digits composite number following 123720104
and preceding 123720106 . In scientific notation, it is written as 1.23720105 × 10^8.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 62447616 positive integers (up to 123720105) that are relatively prime to 123720105.
123720105 has 16 divisors, whose sum is 139163136
The reverse of 123720105 is 501027321
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 21
Digital Root 3
Name
one hundred twenty-three million seven hundred twenty thousand one hundred five
Scientific notation
1.23720105 × 10^8
Engineering notation
1.23720105 × 10^6
Prime Factorization
15 × 23 × 97 × 3697
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
123720105
Product of the distinct prime numbers
The prime factorization of 123720105 is 15 × 23 × 97 × 3697.
Since it has a total of 4 prime factors.
6 , 5 , 56 , 9 , 485 , 406 , 3087 , 7606 , 81982 , 7106 , 986699 , 460143 , 2495432 , 5280661 , 83269821 , 61692040 , 771603882 , 359408091 , 547666290 , 5208304654
n×2
247440210
n×3
371160315
n×4
494880420
n×5
618600525
n÷2
61860052.5
n÷3
41240035
n÷3
30930026.25
n÷5
24744021
n2
15306664381211025
n3
1.8937421244432E+24
n4
2.3429397447903E+32
n5
2.8986875123413E+40
2 √n
11122.953969158
3 √n
498.28761550691
4 √n
105.46541598627
5 √n
41.542062613826
1 , 15 , 23 , 97 , 345 , 1455 , 2231 , 3697 , 33465 , 55455 , 85031 , 358609 , 1275465 , 5379135 , 8248007 , 123720105
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
-123720104
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 123720105 can be divided by 16 positive divisors.
The sum of these divisors (counting 123720105) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010111111101000110101001
3
Ternary
22121210122002010
4
Quaternary
13113331012221
5
Quinary
223133020410
6
Senary
20135430133
8
Octal
727750651
10
Decimal
123720105
12
Duodecimal
35525349
16
Hexadecimal
75fd1a9
20
Vigesimal
1id5055
36
Base36
21nr1l
md5
472d8977a45b331bc1075631fb36b0c1
sha1
0f2adbf81d35943f7a8baac039a8dc5c0d49ad5a
sha256
5aaee30c602327b4cb95203424c9dc401f6b04d28c84853b92fafb9e283407f8
sha512
d646c55ac116342acd1f20a28ec317c6f96d5d534a23b6f3d896242abbd9acdc3a91c4647b0073b1c480eedbe496da3e1e618a0234629fd774f986892c1dc790
ripemd-160
ff2aeee387971b251e80409653dc92b0d0bc168f
Diameter
247440210
Circumference
777356345.93872
Area
4.8087304370977E+16
Volume
7.932488461259E+24
Surface area
1.9234921748391E+17
Circumference
777356345.93872
Perimeter
494880420
Area
15306664381211025
Diagonal
174966650.42922
Surface area
91839986287266150
Volume
1.8937421244432E+24
Space diagonal
214289507.77776
Perimeter
371160315
Area
6.6279801006656E+15
Altitude
107144753.88888
Surface area
6.6279801006656E+15
Volume
2.2317964966873E+23
Height
58322216.809741