123969987 is an odd 9-digits composite number following 123969986
and preceding 123969988 . In scientific notation, it is written as 1.23969987 × 10^8.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 81513216 positive integers (up to 123969987) that are relatively prime to 123969987.
123969987 has 16 divisors, whose sum is 186178080
The reverse of 123969987 is 789969321
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 54
Digital Root 9
Name
one hundred twenty-three million nine hundred sixty-nine thousand nine hundred eighty-seven
Scientific notation
1.23969987 × 10^8
Engineering notation
1.23969987 × 10^6
Prime Factorization
3 × 9 × 73 × 62897
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
123969987
Product of the distinct prime numbers
The prime factorization of 123969987 is 3 × 9 × 73 × 62897.
Since it has a total of 4 prime factors.
2 , 2 , 58 , 2 , 128 , 264 , 4016 , 3125 , 78875 , 95787 , 861313 , 406534 , 1721803 , 8313051 , 43178774 , 60759226 , 640071331 , 588474288 , 6985166188 , 4834202314
n×2
247939974
n×3
371909961
n×4
495879948
n×5
619849935
n÷2
61984993.5
n÷3
41323329
n÷3
30992496.75
n÷5
24793997.4
n2
15368557676780169
n3
1.9052398953992E+24
n4
2.3619256506452E+32
n5
2.9280789220545E+40
2 √n
11134.181020623
3 √n
498.62285978535
4 √n
105.51862878479
5 √n
41.558829876346
1 , 3 , 9 , 27 , 73 , 219 , 657 , 1971 , 62897 , 188691 , 566073 , 1698219 , 4591481 , 13774443 , 41323329 , 123969987
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
-123969986
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 123969987 can be divided by 16 positive divisors.
The sum of these divisors (counting 123969987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111011000111010000111000011
3
Ternary
22122021022212000
4
Quaternary
13120322013003
5
Quinary
223214014422
6
Senary
20145035043
8
Octal
730720703
10
Decimal
123969987
12
Duodecimal
35625a83
16
Hexadecimal
763a1c3
20
Vigesimal
1ieg4j7
36
Base36
21t3ur
md5
c8ce54a13e43822eeacab63e6670a536
sha1
02d0c2395b5d4a6a054edc1e645e12f319695e8b
sha256
fd1cf5efb3ad242fe4912278e8a72591c663c32696ea9eb451a6017e34160f56
sha512
aa8b2310aea125d2c36da76006a8e2cea4ccdd0a3e116ea10538a14afd7ebbc7fce805f44b8e9ae114985f86624a7120d9368fbbff3c38e18ebaa463f7a4fe82
ripemd-160
b382c8c6fd6d512d172f0eb9707b504d784d87d4
Diameter
247939974
Circumference
778926400.84964
Area
4.8281747893644E+16
Volume
7.9806502116164E+24
Surface area
1.9312699157457E+17
Circumference
778926400.84964
Perimeter
495879948
Area
15368557676780169
Diagonal
175320036.94262
Surface area
92211346060681014
Volume
1.9052398953992E+24
Space diagonal
214722316.09765
Perimeter
371909961
Area
6.654780683809E+15
Altitude
107361158.04883
Surface area
6.654780683809E+15
Volume
2.2453467497065E+23
Height
58440012.314205