121980 is an even 6-digits composite number following 121979
and preceding 121981 . In scientific notation, it is written as 1.21980 × 10^5.
The sum of its digits is 21. It has a total of 6 prime factors and 48 positive divisors.
There are 30528 positive integers (up to 121980) that are relatively prime to 121980.
121980 has 48 divisors, whose sum is 362880
The reverse of 121980 is 089121
Previous prime number is 19
Is Prime? no
Number parity even
Number length 6
Sum of Digits 21
Digital Root 3
Name
one hundred twenty-one thousand nine hundred eighty
Scientific notation
1.21980 × 10^5
Engineering notation
1.21980 × 10^3
Prime Factorization
2 × 2 × 3 × 5 × 19 × 107
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
60990
Product of the distinct prime numbers
The prime factorization of 121980 is 2 × 2 × 3 × 5 × 19 × 107.
Since it has a total of 6 prime factors.
1 , 9 , 60 , 84 , 32 , 809 , 4034 , 3375 , 1125 , 20078 , 34786 , 411133 , 5044551 , 5566037 , 61999249 , 57088661 , 217606938 , 726713525 , 781513275 , 9619547886
n×2
243960
n×3
365940
n×4
487920
n×5
609900
n÷2
60990
n÷3
40660
n÷3
30495
n÷5
24396
n2
14879120400
n3
1814955106392000
n4
2.213882238777E+20
n5
2.7004935548601E+25
2 √n
349.25635284129
3 √n
49.59404628503
4 √n
18.68840155929
5 √n
10.4053747462
1 , 2 , 3 , 4 , 5 , 6 , 10 , 12 , 15 , 19 , 20 , 30 , 38 , 57 , 60 , 76 , 95 , 107 , 114 , 190 , 214 , 228 , 285 , 321 , 380 , 428 , 535 , 570 , 642 , 1070 , 1140 , 1284 , 1605 , 2033 , 2140 , 3210 , 4066 , 6099 , 6420 , 8132 , 10165 , 12198 , 20330 , 24396 , 30495 , 40660 , 60990 , 121980
48 divisors
τ
Total Divisors
48
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.020833333333333
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
48
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121980 can be divided by 48 positive divisors.
The sum of these divisors (counting 121980) is 1, the average is 0.020833333333333.
Base
System
Value
2
Binary
11101110001111100
3
Ternary
20012022210
4
Quaternary
131301330
5
Quinary
12400410
6
Senary
2340420
8
Octal
356174
10
Decimal
121980
12
Duodecimal
5a710
16
Hexadecimal
1dc7c
20
Vigesimal
f4j0
36
Base36
2m4c
md5
0eb807bb762939852d2bc73c8fcb97c7
sha1
fd825505d725de45e9e5bb3e7d9cde1670f0af55
sha256
6b6a13c6ae0f3d6a025806cc78692c1c72217e0f5a0b39df5f326d026defc7ee
sha512
afb8a7dba2ebde0893f2c7c646484decd7152ff5f400caa5e5ba63726b6090629f061959d91e0b84dec3a0f073d40ae0b55c29a722a145d113891409a5822a88
ripemd-160
596b5e642e2cebcd4443c0ee27093c9b03717371
Diameter
243960
Circumference
766422.94376977
Area
46744135340.518
Volume
7.6024661717819E+15
Surface area
186976541362.07
Circumference
766422.94376977
Perimeter
487920
Area
14879120400
Diagonal
172505.77033827
Surface area
89274722400
Volume
1814955106392000
Space diagonal
211275.55750725
Perimeter
365940
Area
6442848126.1836
Altitude
105637.77875363
Surface area
6442848126.1836
Volume
2.1389451054649E+14
Height
57501.92344609