121878 is an even 6-digits composite number following 121877
and preceding 121879 . In scientific notation, it is written as 1.21878 × 10^5.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 38880 positive integers (up to 121878) that are relatively prime to 121878.
121878 has 16 divisors, whose sum is 197904
The reverse of 121878 is 878121
Previous prime number is 61
Is Prime? no
Number parity even
Number length 6
Sum of Digits 27
Digital Root 9
Name
one hundred twenty-one thousand eight hundred seventy-eight
Scientific notation
1.21878 × 10^5
Engineering notation
1.21878 × 10^3
Prime Factorization
2 × 27 × 61 × 37
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121878
Product of the distinct prime numbers
The prime factorization of 121878 is 2 × 27 × 61 × 37.
Since it has a total of 4 prime factors.
5 , 7 , 12 , 21 , 987 , 386 , 6236 , 2164 , 79460 , 98093 , 718742 , 550180 , 473465 , 5591408 , 27973104 , 89813519 , 95350950 , 62523785 , 7647715271 , 1842695894
n×2
243756
n×3
365634
n×4
487512
n×5
609390
n÷2
60939
n÷3
40626
n÷3
30469.5
n÷5
24375.6
n2
14854246884
n3
1810405901728152
n4
2.2064865049082E+20
n5
2.6892216224521E+25
2 √n
349.11029775703
3 √n
49.580218872396
4 √n
18.684493510851
5 √n
10.403633963443
1 , 2 , 27 , 37 , 54 , 61 , 74 , 122 , 999 , 1647 , 1998 , 2257 , 3294 , 4514 , 60939 , 121878
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121877
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121878 can be divided by 16 positive divisors.
The sum of these divisors (counting 121878) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11101110000010110
3
Ternary
20012012000
4
Quaternary
131300112
5
Quinary
12400003
6
Senary
2340130
8
Octal
356026
10
Decimal
121878
12
Duodecimal
5a646
16
Hexadecimal
1dc16
20
Vigesimal
f4di
36
Base36
2m1i
md5
9968f1875124e237b08bd7cc42a4946d
sha1
43449a95b0654fb57ec3a50ab0e3c62227f99bbe
sha256
8c279bcfb7bd1fb2c1522dc1f78a685b6ecccb6b0835a274caa815d1d197147a
sha512
4036b5c7cc172bdd4144bcb805ba8c3a3a712f4e8ce473fe0c6fb2f3a2ff04c7b1bc70b4fba52003eff69b08d790d2f0ad5af97c1e18a959db1f35801a08497b
ripemd-160
0f5485aaa06b1a49416618c38d84a173f27bbeb5
Diameter
243756
Circumference
765782.05886843
Area
46665992885.383
Volume
7.5834105078464E+15
Surface area
186663971541.53
Circumference
765782.05886843
Perimeter
487512
Area
14854246884
Diagonal
172361.52055491
Surface area
89125481304
Volume
1810405901728152
Space diagonal
211098.88832488
Perimeter
365634
Area
6432077577.8149
Altitude
105549.44416244
Surface area
6432077577.8149
Volume
2.1335838163535E+14
Height
57453.840184969