20111215 is an odd 8-digits composite number following 20111214
and preceding 20111216 . In scientific notation, it is written as 2.0111215 × 10^7.
The sum of its digits is 13. It has a total of 4 prime factors and 16 positive divisors.
There are 15122592 positive integers (up to 20111215) that are relatively prime to 20111215.
20111215 has 16 divisors, whose sum is 25603200
The reverse of 20111215 is 51211102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty million one hundred eleven thousand two hundred fifteen
Scientific notation
2.0111215 × 10^7
Engineering notation
2.0111215 × 10^6
Prime Factorization
5 × 19 × 139 × 1523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20111215
Product of the distinct prime numbers
The prime factorization of 20111215 is 5 × 19 × 139 × 1523.
Since it has a total of 4 prime factors.
2 , 5 , 13 , 50 , 704 , 29 , 7019 , 9742 , 11767 , 57307 , 756762 , 485440 , 1167221 , 9350993 , 9205388 , 92583302 , 224766261 , 485900986 , 8691948711 , 340604337
n×2
40222430
n×3
60333645
n×4
80444860
n×5
100556075
n÷2
10055607.5
n÷3
6703738.3333333
n÷3
5027803.75
n÷5
4022243
n2
404460968776225
n3
8.1342015021669E+21
n4
1.635886752634E+29
n5
3.2899670197875E+36
2 √n
4484.5529320101
3 √n
271.94397184358
4 √n
66.966804702106
5 √n
28.886016951647
1 , 5 , 19 , 95 , 139 , 695 , 1523 , 2641 , 7615 , 13205 , 28937 , 144685 , 211697 , 1058485 , 4022243 , 20111215
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
-20111214
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 20111215 can be divided by 16 positive divisors.
The sum of these divisors (counting 20111215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101101111101101111
3
Ternary
1101211202101211
4
Quaternary
1030231331233
5
Quinary
20122024330
6
Senary
1555015251
8
Octal
114557557
10
Decimal
20111215
12
Duodecimal
689a527
16
Hexadecimal
132df6f
20
Vigesimal
65di0f
36
Base36
bz1wv
md5
1ec3e6ac73fe6bc3f9cdc2f52235051d
sha1
5be143b521a92037e4ff2c5bdc0d1c925af7e527
sha256
a5bc8da57bee5b7874071a21e992f29c85b6bf21c1af9907624504ce3cc8903e
sha512
d2133846466fdd6fc0ba420f8a7096ce5e9c6ba7d2e988cef603b829a019b50bde67ed6d9e7f98d8da7a6737379f9e5ed26a7bad8af017b5b282258bfb4de928
ripemd-160
eb34efae042f6a491b5530b8ced21f2bf3fcc723
Diameter
40222430
Circumference
126362490.59753
Area
1.2706516081712E+15
Volume
3.4072463576036E+22
Surface area
5.0826064326848E+15
Circumference
126362490.59753
Perimeter
80444860
Area
404460968776225
Diagonal
28441553.008801
Surface area
2426765812657350
Volume
8.1342015021669E+21
Space diagonal
34833646.181941
Perimeter
60333645
Area
1.7513673689974E+14
Altitude
17416823.090971
Surface area
1.7513673689974E+14
Volume
9.5862484028668E+20
Height
9480517.6696004