121405 is an odd 6-digits composite number following 121404
and preceding 121406 . In scientific notation, it is written as 1.21405 × 10^5.
The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors.
There are 97120 positive integers (up to 121405) that are relatively prime to 121405.
121405 has 4 divisors, whose sum is 145692
The reverse of 121405 is 504121
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 13
Digital Root 4
Name
one hundred twenty-one thousand four hundred five
Scientific notation
1.21405 × 10^5
Engineering notation
1.21405 × 10^3
Prime Factorization
5 × 24281
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121405
Product of the distinct prime numbers
The prime factorization of 121405 is 5 × 24281.
Since it has a total of 2 prime factors.
8 , 4 , 64 , 14 , 990 , 491 , 6111 , 2325 , 19435 , 76908 , 883724 , 129423 , 3143052 , 2617590 , 92692788 , 99865563 , 333096061 , 802672195 , 2518501723 , 4502433839
n×2
242810
n×3
364215
n×4
485620
n×5
607025
n÷2
60702.5
n÷3
40468.333333333
n÷3
30351.25
n÷5
24281
n2
14739174025
n3
1789409422505125
n4
2.1724325093923E+20
n5
2.6374416880278E+25
2 √n
348.43220287453
3 √n
49.515996598452
4 √n
18.666338764593
5 √n
10.395546243267
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121405 can be divided by 4 positive divisors.
The sum of these divisors (counting 121405) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101101000111101
3
Ternary
20011112111
4
Quaternary
131220331
5
Quinary
12341110
6
Senary
2334021
8
Octal
355075
10
Decimal
121405
12
Duodecimal
5a311
16
Hexadecimal
1da3d
20
Vigesimal
f3a5
36
Base36
2lod
md5
9df26875cac514bce1def6d24df64bc7
sha1
557fd0c9144a0c066e40f047ff61a03e3c6185ba
sha256
5aa32f28c0ad3b862ae5821ee1cbff5848f9ab3658d35aebc6e2e93f40d6b2ee
sha512
bcb82d997acbfdc14e31271ed6f29107cbc014f85fa6f8e60ebeed3e7026c4fe6778811e6c8dd703a3e8a7807effb51b3b1506eba73051907aa1138489fd45ca
ripemd-160
e62d8213a94a0d070cf955f9c84a2b25e75eb986
Diameter
242810
Circumference
762810.11221814
Area
46304480836.922
Volume
7.4954606613419E+15
Surface area
185217923347.69
Circumference
762810.11221814
Perimeter
485620
Area
14739174025
Diagonal
171692.59753991
Surface area
88435044150
Volume
1789409422505125
Space diagonal
210279.6282929
Perimeter
364215
Area
6382249568.2249
Altitude
105139.81414645
Surface area
6382249568.2249
Volume
2.1088392282875E+14
Height
57230.865846635