121381 is an odd 6-digits composite number following 121380
and preceding 121382 . In scientific notation, it is written as 1.21381 × 10^5.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 112032 positive integers (up to 121381) that are relatively prime to 121381.
121381 has 4 divisors, whose sum is 130732
The reverse of 121381 is 183121
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 16
Digital Root 7
Name
one hundred twenty-one thousand three hundred eighty-one
Scientific notation
1.21381 × 10^5
Engineering notation
1.21381 × 10^3
Prime Factorization
13 × 9337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121381
Product of the distinct prime numbers
The prime factorization of 121381 is 13 × 9337.
Since it has a total of 2 prime factors.
4 , 10 , 16 , 92 , 978 , 237 , 1600 , 4633 , 46548 , 43224 , 629905 , 139504 , 8233136 , 8238292 , 35107123 , 12470728 , 947932077 , 625458501 , 4254674275 , 9814426425
n×2
242762
n×3
364143
n×4
485524
n×5
606905
n÷2
60690.5
n÷3
40460.333333333
n÷3
30345.25
n÷5
24276.2
n2
14733347161
n3
1788348411749341
n4
2.1707151856655E+20
n5
2.6348357995126E+25
2 √n
348.39776118684
3 √n
49.512733519678
4 √n
18.665416180381
5 √n
10.395135201151
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
-121380
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 121381 can be divided by 4 positive divisors.
The sum of these divisors (counting 121381) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101101000100101
3
Ternary
20011111121
4
Quaternary
131220211
5
Quinary
12341011
6
Senary
2333541
8
Octal
355045
10
Decimal
121381
12
Duodecimal
5a2b1
16
Hexadecimal
1da25
20
Vigesimal
f391
36
Base36
2lnp
md5
afaa9ff509c2551a0667e926253fece5
sha1
93038369ae0f4f1c6a382212116d842c3b82702c
sha256
2866b577bd8145a247b4bc6912359a60c885720f1268d94eedc10645e0aa0070
sha512
64cc1e876b86b30bb46eb37483789b8f802423a3ecb89ff38ca952fdb3c2f8ecaa24e6bd0560b8fb975c3c326ed880d9df397386e67e113de9eaa702f0f37ba8
ripemd-160
47476635f2c59659a60e55519a1ab8c9b3ec143a
Diameter
242762
Circumference
762659.31577077
Area
46286175203.786
Volume
7.4910163098809E+15
Surface area
185144700815.14
Circumference
762659.31577077
Perimeter
485524
Area
14733347161
Diagonal
171658.65641441
Surface area
88400082966
Volume
1788348411749341
Space diagonal
210238.05907352
Perimeter
364143
Area
6379726462.1007
Altitude
105119.02953676
Surface area
6379726462.1007
Volume
2.1075888151203E+14
Height
57219.552138136