121605 is an odd 6-digits composite number following 121604
and preceding 121606 . In scientific notation, it is written as 1.21605 × 10^5.
The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors.
There are 58080 positive integers (up to 121605) that are relatively prime to 121605.
121605 has 12 divisors, whose sum is 144704
The reverse of 121605 is 506121
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 15
Digital Root 6
Name
one hundred twenty-one thousand six hundred five
Scientific notation
1.21605 × 10^5
Engineering notation
1.21605 × 10^3
Prime Factorization
15 × 11 × 11 × 67
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
11055
Product of the distinct prime numbers
The prime factorization of 121605 is 15 × 11 × 11 × 67.
Since it has a total of 4 prime factors.
8 , 1 , 22 , 25 , 836 , 470 , 6926 , 4980 , 16909 , 12857 , 8586 , 55639 , 7183130 , 5869197 , 52462469 , 87592222 , 582181920 , 223979891 , 8533371683 , 4498365276
n×2
243210
n×3
364815
n×4
486420
n×5
608025
n÷2
60802.5
n÷3
40535
n÷3
30401.25
n÷5
24321
n2
14787776025
n3
1798267503520125
n4
2.1867831976556E+20
n5
2.6592377075092E+25
2 √n
348.71908465124
3 √n
49.543172212265
4 √n
18.674021651783
5 √n
10.398969068635
1 , 11 , 15 , 67 , 121 , 165 , 737 , 1005 , 1815 , 8107 , 11055 , 121605
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121604
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121605 can be divided by 12 positive divisors.
The sum of these divisors (counting 121605) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11101101100000101
3
Ternary
20011210220
4
Quaternary
131230011
5
Quinary
12342410
6
Senary
2334553
8
Octal
355405
10
Decimal
121605
12
Duodecimal
5a459
16
Hexadecimal
1db05
20
Vigesimal
f405
36
Base36
2ltx
md5
c32a68cc0a9d3b824210f18cb522edb2
sha1
82a2d450f86f98156d2995646ba3b1e26de02e78
sha256
8c6fd266a5107b123c3977b8ff2db052884035ad454a0af890b5644bbf97d487
sha512
e00c8949132536bd905d9dc42f2b654f9dee2c81fc29a2df20b5a3e78c7324f0fe2f15b12da50d5950af50abf77cca3ec9742ffdf10a306416ac9bfa0b58af39
ripemd-160
52b1c246a25314b1193952b4b425a9d47131a633
Diameter
243210
Circumference
764066.74927957
Area
46457168523.071
Volume
7.5325653043308E+15
Surface area
185828674092.29
Circumference
764066.74927957
Perimeter
486420
Area
14787776025
Diagonal
171975.44025238
Surface area
88726656150
Volume
1798267503520125
Space diagonal
210626.03845441
Perimeter
364815
Area
6403294851.5622
Altitude
105313.01922721
Surface area
6403294851.5622
Volume
2.1192785768775E+14
Height
57325.146750793