20121395 is an odd 8-digits composite number following 20121394
and preceding 20121396 . In scientific notation, it is written as 2.0121395 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 13759200 positive integers (up to 20121395) that are relatively prime to 20121395.
20121395 has 16 divisors, whose sum is 27671808
The reverse of 20121395 is 59312102
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-one thousand three hundred ninety-five
Scientific notation
2.0121395 × 10^7
Engineering notation
2.0121395 × 10^6
Prime Factorization
5 × 7 × 547 × 1051
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121395
Product of the distinct prime numbers
The prime factorization of 20121395 is 5 × 7 × 547 × 1051.
Since it has a total of 4 prime factors.
6 , 1 , 10 , 60 , 686 , 72 , 4877 , 9417 , 3018 , 56277 , 586543 , 842065 , 1224721 , 1052126 , 70003115 , 49414145 , 342897471 , 241337214 , 7504669600 , 3865495627
n×2
40242790
n×3
60364185
n×4
80485580
n×5
100606975
n÷2
10060697.5
n÷3
6707131.6666667
n÷3
5030348.75
n÷5
4024279
n2
404870536746025
n3
8.1465599937288E+21
n4
1.6392015152501E+29
n5
3.2983021172947E+36
2 √n
4485.6877956452
3 √n
271.98984877773
4 √n
66.975277495843
5 √n
28.888940694755
1 , 5 , 7 , 35 , 547 , 1051 , 2735 , 3829 , 5255 , 7357 , 19145 , 36785 , 574897 , 2874485 , 4024279 , 20121395
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
-20121394
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 20121395 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121395) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011100110011
3
Ternary
1101212021100212
4
Quaternary
1030300130303
5
Quinary
20122341040
6
Senary
1555134335
8
Octal
114603463
10
Decimal
20121395
12
Duodecimal
68a43ab
16
Hexadecimal
1330733
20
Vigesimal
65f39f
36
Base36
bz9rn
md5
043068a0531240387c483406f72eec60
sha1
118f148abe51df7f93732db3758f4e0d5dd3ab86
sha256
bceafe0c8de10cc3339f7bff90b4f57719ca1ec1d6c9edda531e86bc25c57add
sha512
18546f4fb7ffb8596a885337948aa8de3bfa3ec7f65ad56ac3a6841b779ccd6b04561a6d5c0256f34b645993db92b43dd505d6a88af433ae0565fdfad621ef91
ripemd-160
8e69d1d118350e492f17efa4d029bd03cd75a248
Diameter
40242790
Circumference
126426453.42396
Area
1.2719383038963E+15
Volume
3.4124230704436E+22
Surface area
5.0877532155851E+15
Circumference
126426453.42396
Perimeter
80485580
Area
404870536746025
Diagonal
28455949.702866
Surface area
2429223220476150
Volume
8.1465599937288E+21
Space diagonal
34851278.459162
Perimeter
60364185
Area
1.7531408503295E+14
Altitude
17425639.229581
Surface area
1.7531408503295E+14
Volume
9.6008130248478E+20
Height
9485316.5676221