20105212 is an even 8-digits composite number following 20105211
and preceding 20105213 . In scientific notation, it is written as 2.0105212 × 10^7.
The sum of its digits is 13. It has a total of 4 prime factors and 12 positive divisors.
There are 9910880 positive integers (up to 20105212) that are relatively prime to 20105212.
20105212 has 12 divisors, whose sum is 35680176
The reverse of 20105212 is 21250102
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty million one hundred five thousand two hundred twelve
Scientific notation
2.0105212 × 10^7
Engineering notation
2.0105212 × 10^6
Prime Factorization
2 × 2 × 71 × 70793
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10052606
Product of the distinct prime numbers
The prime factorization of 20105212 is 2 × 2 × 71 × 70793.
Since it has a total of 4 prime factors.
1 , 6 , 1 , 30 , 413 , 831 , 9154 , 5889 , 53822 , 67417 , 493488 , 733731 , 5650358 , 3364411 , 46651567 , 77833460 , 659722625 , 1059336 , 5247799539 , 9821389995
n×2
40210424
n×3
60315636
n×4
80420848
n×5
100526060
n÷2
10052606
n÷3
6701737.3333333
n÷3
5026303
n÷5
4021042.4
n2
404219549564944
n3
8.1269197385477E+21
n4
1.6339344425049E+29
n5
3.2850598360662E+36
2 √n
4483.8835845726
3 √n
271.9169116168
4 √n
66.961806909407
5 √n
28.884292307293
1 , 2 , 4 , 71 , 142 , 284 , 70793 , 141586 , 283172 , 5026303 , 10052606 , 20105212
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20105211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20105212 can be divided by 12 positive divisors.
The sum of these divisors (counting 20105212) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100101100011111111100
3
Ternary
1101211110011111
4
Quaternary
1030230133330
5
Quinary
20121331322
6
Senary
1554531404
8
Octal
114543774
10
Decimal
20105212
12
Duodecimal
6896b64
16
Hexadecimal
132c7fc
20
Vigesimal
65d30c
36
Base36
byxa4
md5
30adbd8b87a6bf00cc347c847ae06ec9
sha1
e2042142f565a0061fa177768a6af07e7180d601
sha256
a6cebccc64a270b6ad408ecf0bdc5fd986dbcfd2bc9d72eaf5176e3eee2893c8
sha512
dbe89f44d57b59fd7fa230673fc54d1182d9a5bb5f257a3d9210cfd1c373678402c5829f07cbab9cbef6aeadd0969745975b7f241170c3a3e40c16a5f2683251
ripemd-160
18147211abed1cda348a581064e78a794954e65b
Diameter
40210424
Circumference
126324772.63613
Area
1.2698931673506E+15
Volume
3.4041961795914E+22
Surface area
5.0795726694024E+15
Circumference
126324772.63613
Perimeter
80420848
Area
404219549564944
Diagonal
28433063.484786
Surface area
2425317297389664
Volume
8.1269197385477E+21
Space diagonal
34823248.680943
Perimeter
60315636
Area
1.7503219931477E+14
Altitude
17411624.340472
Surface area
1.7503219931477E+14
Volume
9.5776667621431E+20
Height
9477687.8282621