21102015 is an odd 8-digits composite number following 21102014
and preceding 21102016 . In scientific notation, it is written as 2.1102015 × 10^7.
The sum of its digits is 12. It has a total of 4 prime factors and 16 positive divisors.
There are 9628160 positive integers (up to 21102015) that are relatively prime to 21102015.
21102015 has 16 divisors, whose sum is 30336768
The reverse of 21102015 is 51020112
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million one hundred two thousand fifteen
Scientific notation
2.1102015 × 10^7
Engineering notation
2.1102015 × 10^6
Prime Factorization
3 × 55 × 17 × 7523
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21102015
Product of the distinct prime numbers
The prime factorization of 21102015 is 3 × 55 × 17 × 7523.
Since it has a total of 4 prime factors.
4 , 4 , 1 , 17 , 610 , 878 , 4350 , 7935 , 5403 , 69287 , 868454 , 872051 , 9553042 , 5004511 , 90739831 , 18080653 , 187790580 , 681184040 , 3525868994 , 3449329485
n×2
42204030
n×3
63306045
n×4
84408060
n×5
105510075
n÷2
10551007.5
n÷3
7034005
n÷3
5275503.75
n÷5
4220403
n2
445295037060225
n3
9.3966225514704E+21
n4
1.9828767003047E+29
n5
4.184269387298E+36
2 √n
4593.6929588295
3 √n
276.33844482102
4 √n
67.77678775827
5 √n
29.165188351031
1 , 3 , 17 , 51 , 55 , 165 , 935 , 2805 , 7523 , 22569 , 127891 , 383673 , 413765 , 1241295 , 7034005 , 21102015
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
-21102014
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 21102015 can be divided by 16 positive divisors.
The sum of these divisors (counting 21102015) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011111110110111111
3
Ternary
1110201002112010
4
Quaternary
1100133312333
5
Quinary
20400231030
6
Senary
2032142303
8
Octal
120376677
10
Decimal
21102015
12
Duodecimal
7097993
16
Hexadecimal
141fdbf
20
Vigesimal
6bhf0f
36
Base36
ckaf3
md5
223caa26fe62ecefbc271c659008aa86
sha1
966feb50cc435a2d3ad9a53570ba900f77ad47b6
sha256
f740f9d8326e3f2f165d81d11595ebf9d9070df51cbd6ec7d0baf2159bdbf65d
sha512
898bc323255300e6f19d1046f2033eb6d293810d21c4953979599803487f7f9b9661d9431b89992162b3ff601b980a011dc7893922b21a5f38a8508e4728948b
ripemd-160
78389262dbcfd8721899e4ef7483cb40f4443517
Diameter
42204030
Circumference
132587870.59988
Area
1.3989356171084E+15
Volume
3.9360480501674E+22
Surface area
5.5957424684336E+15
Circumference
132587870.59988
Perimeter
84408060
Area
445295037060225
Diagonal
29842755.8064
Surface area
2671770222361350
Volume
9.3966225514704E+21
Space diagonal
36549762.122081
Perimeter
63306045
Area
1.9281840713664E+14
Altitude
18274881.06104
Surface area
1.9281840713664E+14
Volume
1.1074025877325E+21
Height
9947585.2688002