123989 is an odd 6-digits prime number following 123988
and preceding 123990 . In scientific notation, it is written as 1.23989 × 10^5.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 123988 positive integers (up to 123989) that are relatively prime to 123989.
123989 has 2 divisors, whose sum is 123990
The reverse of 123989 is 989321
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 32
Digital Root 5
Name
one hundred twenty-three thousand nine hundred eighty-nine
Scientific notation
1.23989 × 10^5
Engineering notation
1.23989 × 10^3
Prime Factorization
123989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
123989
Product of the distinct prime numbers
The prime factorization of 123989 is 123989.
Since it has a total of 1 prime factors.
3 , 6 , 11 , 11 , 972 , 985 , 1603 , 8708 , 97497 , 36813 , 765879 , 785980 , 2951824 , 3684841 , 86218272 , 11267042 , 965695045 , 869430839 , 5384003015 , 4840865784
n×2
247978
n×3
371967
n×4
495956
n×5
619945
n÷2
61994.5
n÷3
41329.666666667
n÷3
30997.25
n÷5
24797.8
n2
15373272121
n3
1906116637010669
n4
2.3633749570632E+20
n5
2.930324975513E+25
2 √n
352.12071793633
3 √n
49.864834937372
4 √n
18.764879907325
5 √n
10.439426272416
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
123990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
61995
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
352.12213790104
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999838696669
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 123989 can be divided by 2 positive divisors.
The sum of these divisors (counting 123989) is 123990, the average is 61995.
Base
System
Value
2
Binary
11110010001010101
3
Ternary
20022002012
4
Quaternary
132101111
5
Quinary
12431424
6
Senary
2354005
8
Octal
362125
10
Decimal
123989
12
Duodecimal
5b905
16
Hexadecimal
1e455
20
Vigesimal
f9j9
36
Base36
2no5
md5
ed6a1f72da15eb8caeb64da61bb75c15
sha1
f024cddaeda993f65759ce1e47a7ab50e7569224
sha256
521c52f681a55eecd7e4dd6ad212602f04da34182747fab7a2d4c2a0feab4260
sha512
3558a44fabacb9209a5b780b5f1843c77a307a5f7ab57fb1fccc8daa81fd29195d78d982dd3d65598aa955e812314e4e0107474a3baa66342aaeb94ecadb1723
ripemd-160
f96ba1536e9145fb1610bb58edcc19e404d5f112
Diameter
247978
Circumference
779045.86305189
Area
48296558756.97
Volume
7.9843226982907E+15
Surface area
193186235027.88
Circumference
779045.86305189
Perimeter
495956
Area
15373272121
Diagonal
175346.92538508
Surface area
92239632726
Volume
1906116637010669
Space diagonal
214755.24757966
Perimeter
371967
Area
6656822098.0385
Altitude
107377.62378983
Surface area
6656822098.0385
Volume
2.2463799996046E+14
Height
58448.975128359