123281 is an odd 6-digits composite number following 123280
and preceding 123282 . In scientific notation, it is written as 1.23281 × 10^5.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 115920 positive integers (up to 123281) that are relatively prime to 123281.
123281 has 8 divisors, whose sum is 130944
The reverse of 123281 is 182321
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 17
Digital Root 8
Name
one hundred twenty-three thousand two hundred eighty-one
Scientific notation
1.23281 × 10^5
Engineering notation
1.23281 × 10^3
Prime Factorization
47 × 61 × 43
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
123281
Product of the distinct prime numbers
The prime factorization of 123281 is 47 × 61 × 43.
Since it has a total of 3 prime factors.
10 , 10 , 30 , 33 , 873 , 699 , 9311 , 7122 , 41274 , 56541 , 912490 , 229195 , 5683502 , 1214017 , 6167983 , 78289782 , 957089750 , 635490329 , 3696287977 , 7696621517
n×2
246562
n×3
369843
n×4
493124
n×5
616405
n÷2
61640.5
n÷3
41093.666666667
n÷3
30820.25
n÷5
24656.2
n2
15198204961
n3
1873649905797041
n4
2.3098543403657E+20
n5
2.8476115293462E+25
2 √n
351.1139416201
3 √n
49.769741245871
4 √n
18.738034625331
5 √n
10.427476738634
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-123280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 123281 can be divided by 8 positive divisors.
The sum of these divisors (counting 123281) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110000110010001
3
Ternary
20021002222
4
Quaternary
132012101
5
Quinary
12421111
6
Senary
2350425
8
Octal
360621
10
Decimal
123281
12
Duodecimal
5b415
16
Hexadecimal
1e191
20
Vigesimal
f841
36
Base36
2n4h
md5
6f6e0538ead46a68ea016263b2398ccd
sha1
a6c0714e718beeef17e95999ea945283b8bbf586
sha256
7dba6d9ad7bc4224d819431e97e6ae979feee0e9f5e8295f7906774dcc84845a
sha512
09030869e3f27472916249820c7a910424bbf4f124049547b0efa889034f4becb8c6d0c8d39ff6b18f6758d8b205058a7a8b4cad387c201e9cb068df23f5be21
ripemd-160
1e9566fde392e3d202356211fbbb658f5024c103
Diameter
246562
Circumference
774597.36785441
Area
47746569053.23
Volume
7.8483263726016E+15
Surface area
190986276212.92
Circumference
774597.36785441
Perimeter
493124
Area
15198204961
Diagonal
174345.66218292
Surface area
91189229766
Volume
1873649905797041
Space diagonal
213528.9556079
Perimeter
369843
Area
6581015794.0743
Altitude
106764.47780395
Surface area
6581015794.0743
Volume
2.208117589931E+14
Height
58115.220727639