121921 is an odd 6-digits prime number following 121920
and preceding 121922 . In scientific notation, it is written as 1.21921 × 10^5.
The sum of its digits is 16. It has a total of 1 prime factors and 2 positive divisors.
There are 121920 positive integers (up to 121921) that are relatively prime to 121921.
121921 has 2 divisors, whose sum is 121922
The reverse of 121921 is 129121
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 16
Digital Root 7
Name
one hundred twenty-one thousand nine hundred twenty-one
Scientific notation
1.21921 × 10^5
Engineering notation
1.21921 × 10^3
Prime Factorization
121921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
121921
Product of the distinct prime numbers
The prime factorization of 121921 is 121921.
Since it has a total of 1 prime factors.
9 , 10 , 55 , 5 , 906 , 67 , 1511 , 7675 , 72740 , 14318 , 712809 , 466401 , 3410192 , 5772472 , 4949540 , 95989088 , 129339255 , 368776683 , 5489090071 , 9851221716
n×2
243842
n×3
365763
n×4
487684
n×5
609605
n÷2
60960.5
n÷3
40640.333333333
n÷3
30480.25
n÷5
24384.2
n2
14864730241
n3
1812322775712961
n4
2.209602051377E+20
n5
2.6939689170594E+25
2 √n
349.1718774472
3 √n
49.586049016023
4 √n
18.686141320433
5 √n
10.404367964888
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
121922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
60961
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
349.1733094038
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999835960696
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121921 can be divided by 2 positive divisors.
The sum of these divisors (counting 121921) is 121922, the average is 60961.
Base
System
Value
2
Binary
11101110001000001
3
Ternary
20012020121
4
Quaternary
131301001
5
Quinary
12400141
6
Senary
2340241
8
Octal
356101
10
Decimal
121921
12
Duodecimal
5a681
16
Hexadecimal
1dc41
20
Vigesimal
f4g1
36
Base36
2m2p
md5
4c8f7bf0034208696d4e6c1583b9e1b6
sha1
460bcfb55070c1d3f6bd6423d340ff23cf53de20
sha256
8c0ffe47c86b86e6f53f4acc4b30029132b579663892c0f7c2cf61a9a8cd67c3
sha512
b26309bd5f2c790cd642339e72aa494098ccff841ce34b2e4fca500930b5533015a2b7962cd36f9418bfcd17308f4b3aed673ffeec5ab9db1b67de2b91df0617
ripemd-160
e688fff7697cde27ce8f6d4eedcf29c1316bc481
Diameter
243842
Circumference
766052.23583664
Area
46698927322.72
Volume
7.5914398908177E+15
Surface area
186795709290.88
Circumference
766052.23583664
Perimeter
487684
Area
14864730241
Diagonal
172422.33173809
Surface area
89188381446
Volume
1812322775712961
Space diagonal
211173.36650961
Perimeter
365763
Area
6436617004.5544
Altitude
105586.6832548
Surface area
6436617004.5544
Volume
2.1358428740091E+14
Height
57474.110579363