20212855 is an odd 8-digits composite number following 20212854
and preceding 20212856 . In scientific notation, it is written as 2.0212855 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 14410368 positive integers (up to 20212855) that are relatively prime to 20212855.
20212855 has 16 divisors, whose sum is 27024480
The reverse of 20212855 is 55821202
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred twelve thousand eight hundred fifty-five
Scientific notation
2.0212855 × 10^7
Engineering notation
2.0212855 × 10^6
Prime Factorization
5 × 29 × 13 × 10723
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20212855
Product of the distinct prime numbers
The prime factorization of 20212855 is 5 × 29 × 13 × 10723.
Since it has a total of 4 prime factors.
7 , 4 , 72 , 55 , 913 , 983 , 2311 , 6115 , 56175 , 66664 , 207820 , 635049 , 1347458 , 5453286 , 26405274 , 80864788 , 349957497 , 933904067 , 1241621851 , 7707195510
n×2
40425710
n×3
60638565
n×4
80851420
n×5
101064275
n÷2
10106427.5
n÷3
6737618.3333333
n÷3
5053213.75
n÷5
4042571
n2
408559507251025
n3
8.2581540789364E+21
n4
1.669208709652E+29
n5
3.3739473612933E+36
2 √n
4495.8708833773
3 √n
272.40132779671
4 √n
67.051255643555
5 √n
28.915155494019
1 , 5 , 13 , 29 , 65 , 145 , 377 , 1885 , 10723 , 53615 , 139399 , 310967 , 696995 , 1554835 , 4042571 , 20212855
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
-20212854
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 20212855 can be divided by 16 positive divisors.
The sum of these divisors (counting 20212855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110110001110111
3
Ternary
1102000220211021
4
Quaternary
1031012301313
5
Quinary
20133302410
6
Senary
2001122011
8
Octal
115066167
10
Decimal
20212855
12
Duodecimal
6929307
16
Hexadecimal
1346c77
20
Vigesimal
666c2f
36
Base36
c18c7
md5
4d81d5c81d4ad6c9a58341282046b1b9
sha1
23632693c034bdde72292b18ec34b07540534f30
sha256
71c854c0218ae6efe398cdcff3af1f5ba0de7a3ea89b30232e9778c5c3c35674
sha512
d237fbfda0610d4539d5f9398124ff9823f87893244611512405c1adf109201a103c212ed00e923f7f6f2e2fcba8b3aed185ab5fd7e40b3638ab9c2a4d39fca6
ripemd-160
6dda132008a9584a94fe76fd0907b8981dd2b35e
Diameter
40425710
Circumference
127001113.55215
Area
1.2835275465341E+15
Volume
3.4591674915466E+22
Surface area
5.1341101861363E+15
Circumference
127001113.55215
Perimeter
80851420
Area
408559507251025
Diagonal
28585293.675281
Surface area
2451357043506150
Volume
8.2581540789364E+21
Space diagonal
35009691.826023
Perimeter
60638565
Area
1.7691145611852E+14
Altitude
17504845.913011
Surface area
1.7691145611852E+14
Volume
9.7323279154988E+20
Height
9528431.2250936