121920005 is an odd 9-digits composite number following 121920004
and preceding 121920006 . In scientific notation, it is written as 1.21920005 × 10^8.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 91798528 positive integers (up to 121920005) that are relatively prime to 121920005.
121920005 has 8 divisors, whose sum is 154910232
The reverse of 121920005 is 500029121
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 20
Digital Root 2
Name
one hundred twenty-one million nine hundred twenty thousand five
Scientific notation
1.21920005 × 10^8
Engineering notation
1.21920005 × 10^6
Prime Factorization
17 × 5 × 1434353
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
121920005
Product of the distinct prime numbers
The prime factorization of 121920005 is 17 × 5 × 1434353.
Since it has a total of 3 prime factors.
8 , 6 , 91 , 18 , 251 , 299 , 2959 , 1598 , 96564 , 38961 , 779865 , 627291 , 6253945 , 6129265 , 52506169 , 49768474 , 915152666 , 726473885 , 5661277165 , 7552240487
n×2
243840010
n×3
365760015
n×4
487680020
n×5
609600025
n÷2
60960002.5
n÷3
40640001.666667
n÷3
30480001.25
n÷5
24384001
n2
14864487619200025
n3
1.8122784048553E+24
n4
2.2095299218135E+32
n5
2.6938589911515E+40
2 √n
11041.739219887
3 √n
495.85914124706
4 √n
105.07968033777
5 √n
41.420467311989
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121920004
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121920005 can be divided by 8 positive divisors.
The sum of these divisors (counting 121920005) is 1, the average is 0.125.
Base
System
Value
2
Binary
111010001000101101000000101
3
Ternary
22111102011210202
4
Quaternary
13101011220011
5
Quinary
222202420010
6
Senary
20033100245
8
Octal
721055005
10
Decimal
121920005
12
Duodecimal
349b7685
16
Hexadecimal
7445a05
20
Vigesimal
1i20005
36
Base36
20l62t
md5
8d6bd4c29d56e034bff147ce478aef59
sha1
456ceefc76837c0d798af3996973cc59e6865201
sha256
bd99a69fcd4905a1e9e472192f509b08d5295f4ede21b40019483eb6abd700c2
sha512
07f2249d9fa71435c9c151bacb4d8bbdac866393b05e57a66f919d22e8b6370d9a1a911d1468e4dc471d65dcfa88bc465f33884ef56e771c546877bd3d9a55ab
ripemd-160
68d175dbae6e914b0250a050f307d54009aeb54c
Diameter
243840010
Circumference
766045984.06726
Area
4.6698165103855E+16
Volume
7.5912540306038E+24
Surface area
1.8679266041542E+17
Circumference
766045984.06726
Perimeter
487680020
Area
14864487619200025
Diagonal
172420924.5956
Surface area
89186925715200150
Volume
1.8122784048553E+24
Space diagonal
211171643.11905
Perimeter
365760015
Area
6.4365119462332E+15
Altitude
105585821.55953
Surface area
6.4365119462332E+15
Volume
2.1357905824519E+23
Height
57473641.531865