20121493 is an odd 8-digits composite number following 20121492
and preceding 20121494 . In scientific notation, it is written as 2.0121493 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 17246988 positive integers (up to 20121493) that are relatively prime to 20121493.
20121493 has 4 divisors, whose sum is 22996000
The reverse of 20121493 is 39412102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred twenty-one thousand four hundred ninety-three
Scientific notation
2.0121493 × 10^7
Engineering notation
2.0121493 × 10^6
Prime Factorization
7 × 2874499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121493
Product of the distinct prime numbers
The prime factorization of 20121493 is 7 × 2874499.
Since it has a total of 2 prime factors.
7 , 6 , 21 , 78 , 388 , 629 , 5634 , 8302 , 69537 , 85298 , 495892 , 207566 , 2454294 , 4812007 , 26004464 , 14472247 , 723923847 , 936222690 , 818631681 , 5722734651
n×2
40242986
n×3
60364479
n×4
80485972
n×5
100607465
n÷2
10060746.5
n÷3
6707164.3333333
n÷3
5030373.25
n÷5
4024298.6
n2
404874480549049
n3
8.1466790262463E+21
n4
1.6392334499986E+29
n5
3.2983824389513E+36
2 √n
4485.6987192633
3 √n
271.99029034688
4 √n
66.975359045422
5 √n
28.888968835057
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121492
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121493 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121493) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011110010101
3
Ternary
1101212021111111
4
Quaternary
1030300132111
5
Quinary
20122341433
6
Senary
1555135021
8
Octal
114603625
10
Decimal
20121493
12
Duodecimal
68a4471
16
Hexadecimal
1330795
20
Vigesimal
65f3ed
36
Base36
bz9ud
md5
5fbc03bd836ad8a9aa31414afccefd1e
sha1
37abfedfbcb760318b9c1cac26eb83a02a763040
sha256
5898f692d663e7b739642af1ef02e911e028e50f4359bf68f12d30d8b20181bb
sha512
aab1fb1df67f5f283bf8d60aca03774602c78a9fb7417275d7c322eee6e29adfd5ff6337ab9d3dc8c712235987dac7c48c52af7a680bf245af56e7f027248d68
ripemd-160
b447bc4bf2bf589545b8ce8613cacf2b632884a8
Diameter
40242986
Circumference
126427069.17612
Area
1.2719506937189E+15
Volume
3.4124729306679E+22
Surface area
5.0878027748755E+15
Circumference
126427069.17612
Perimeter
80485972
Area
404874480549049
Diagonal
28456088.295795
Surface area
2429246883294294
Volume
8.1466790262463E+21
Space diagonal
34851448.200142
Perimeter
60364479
Area
1.7531579274975E+14
Altitude
17425724.100071
Surface area
1.7531579274975E+14
Volume
9.600953306015E+20
Height
9485362.7652651