123921 is an odd 6-digits composite number following 123920
and preceding 123922 . In scientific notation, it is written as 1.23921 × 10^5.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 70560 positive integers (up to 123921) that are relatively prime to 123921.
123921 has 8 divisors, whose sum is 144384
The reverse of 123921 is 129321
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 18
Digital Root 9
Name
one hundred twenty-three thousand nine hundred twenty-one
Scientific notation
1.23921 × 10^5
Engineering notation
1.23921 × 10^3
Prime Factorization
63 × 7 × 281
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
123921
Product of the distinct prime numbers
The prime factorization of 123921 is 63 × 7 × 281.
Since it has a total of 3 prime factors.
10 , 7 , 99 , 54 , 666 , 491 , 1258 , 5025 , 29071 , 10841 , 50636 , 843462 , 4964043 , 692761 , 58153090 , 99912986 , 92802823 , 37641378 , 8958031418 , 3499723563
n×2
247842
n×3
371763
n×4
495684
n×5
619605
n÷2
61960.5
n÷3
41307
n÷3
30980.25
n÷5
24784.2
n2
15356414241
n3
1902982209158961
n4
2.3581945834119E+20
n5
2.9222983097098E+25
2 √n
352.02414689904
3 √n
49.85571738435
4 √n
18.76230654528
5 √n
10.438280950222
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
-123920
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 123921 can be divided by 8 positive divisors.
The sum of these divisors (counting 123921) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110010000010001
3
Ternary
20021222200
4
Quaternary
132100101
5
Quinary
12431141
6
Senary
2353413
8
Octal
362021
10
Decimal
123921
12
Duodecimal
5b869
16
Hexadecimal
1e411
20
Vigesimal
f9g1
36
Base36
2nm9
md5
ce5992145305afbd79300a8275591e67
sha1
1276706176d63f2448114816452ad9aeb8ef06d6
sha256
8218307a83d0b4d9b928762a7736abb9cd55158e590f82e0a797d8d9396f2eb5
sha512
82c97773429e328d753ecb7ef7fa9bcce312e1b34f444b0e40f61f83f5f4a02bf6fd8d2f8504d107e116faa838de8007f5fb6b9a7fdb4d67a1bfafe54d469f37
ripemd-160
db1bf8bd06bc31a628aae940c64738e51f832ddc
Diameter
247842
Circumference
778618.606451
Area
48243598165.007
Volume
7.9711932376078E+15
Surface area
192974392660.03
Circumference
778618.606451
Perimeter
495684
Area
15356414241
Diagonal
175250.75886284
Surface area
92138485446
Volume
1902982209158961
Space diagonal
214637.46812474
Perimeter
371763
Area
6649522421.8716
Altitude
107318.73406237
Surface area
6649522421.8716
Volume
2.2426860409561E+14
Height
58416.919620945