20121355 is an odd 8-digits composite number following 20121354
and preceding 20121356 . In scientific notation, it is written as 2.0121355 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 15876288 positive integers (up to 20121355) that are relatively prime to 20121355.
20121355 has 8 divisors, whose sum is 24476832
The reverse of 20121355 is 55312102
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-one thousand three hundred fifty-five
Scientific notation
2.0121355 × 10^7
Engineering notation
2.0121355 × 10^6
Prime Factorization
5 × 73 × 55127
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121355
Product of the distinct prime numbers
The prime factorization of 20121355 is 5 × 73 × 55127.
Since it has a total of 3 prime factors.
3 , 8 , 49 , 15 , 223 , 437 , 1539 , 4965 , 39897 , 90188 , 919953 , 665806 , 8090767 , 4000153 , 76992019 , 28091818 , 623596275 , 782062774 , 3684798096 , 6710989921
n×2
40242710
n×3
60364065
n×4
80485420
n×5
100606775
n÷2
10060677.5
n÷3
6707118.3333333
n÷3
5030338.75
n÷5
4024271
n2
404868927036025
n3
8.146511409361E+21
n4
1.639188480793E+29
n5
3.2982693333947E+36
2 √n
4485.6833370179
3 √n
271.98966854501
4 √n
66.975244210215
5 √n
28.888929208886
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
-20121354
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 20121355 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121355) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011100001011
3
Ternary
1101212021022101
4
Quaternary
1030300130023
5
Quinary
20122340410
6
Senary
1555134231
8
Octal
114603413
10
Decimal
20121355
12
Duodecimal
68a4377
16
Hexadecimal
133070b
20
Vigesimal
65f37f
36
Base36
bz9qj
md5
e40dd7c2659562e3671d7f91258170bd
sha1
f35b1a535ace93b3326efcdb25f2f55ad24ebe63
sha256
001ee16978f7e1d1696f27ee3ec04dfaf8a3a3dd6a5150bd8bb98527645349f5
sha512
f7eceb395ce99edf78ff22bd2f0daf0df000ca7f64eab454dc6bd9cf4785aaecbc941df32b05c43ed44eaf352a53eae08be9857b4ae68ab7b1282b661964c23b
ripemd-160
5b14b174a89e1045a07a253d470c00d148afd862
Diameter
40242710
Circumference
126426202.09654
Area
1.2719332468432E+15
Volume
3.4124027194712E+22
Surface area
5.0877329873726E+15
Circumference
126426202.09654
Perimeter
80485420
Area
404868927036025
Diagonal
28455893.134324
Surface area
2429213562216150
Volume
8.146511409361E+21
Space diagonal
34851209.17713
Perimeter
60364065
Area
1.7531338800807E+14
Altitude
17425604.588565
Surface area
1.7531338800807E+14
Volume
9.6007557676212E+20
Height
9485297.7114412