21492015 is an odd 8-digits composite number following 21492014
and preceding 21492016 . In scientific notation, it is written as 2.1492015 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 11462400 positive integers (up to 21492015) that are relatively prime to 21492015.
21492015 has 4 divisors, whose sum is 22924832
The reverse of 21492015 is 51029412
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million four hundred ninety-two thousand fifteen
Scientific notation
2.1492015 × 10^7
Engineering notation
2.1492015 × 10^6
Prime Factorization
15 × 1432801
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492015
Product of the distinct prime numbers
The prime factorization of 21492015 is 15 × 1432801.
Since it has a total of 2 prime factors.
7 , 7 , 50 , 64 , 933 , 883 , 3109 , 163 , 67589 , 8864 , 152704 , 290816 , 2011437 , 9875249 , 44040510 , 12337647 , 727031476 , 158045916 , 4219246148 , 9130004510
n×2
42984030
n×3
64476045
n×4
85968060
n×5
107460075
n÷2
10746007.5
n÷3
7164005
n÷3
5373003.75
n÷5
4298403
n2
461906708760225
n3
9.9273059132754E+21
n4
2.133578075977E+29
n5
4.585489201257E+36
2 √n
4635.948123092
3 √n
278.03046006148
4 √n
68.087797167275
5 √n
29.272204261784
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492014
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492015 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492015) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111000100101111
3
Ternary
1111102220111120
4
Quaternary
1101333010233
5
Quinary
21000221030
6
Senary
2044352023
8
Octal
121770457
10
Decimal
21492015
12
Duodecimal
7245613
16
Hexadecimal
147f12f
20
Vigesimal
6e6a0f
36
Base36
csncf
md5
cab83211508841cc69888783e562003d
sha1
df5b81516eef2bafbaae4b3268ec7bb494a422ce
sha256
16fa7ce398e165d7144fdefae2c88b69ff9089c97d2ac979ffe3a0ca6adf462b
sha512
461b9f101b7fd53124551589db8b4b05094b333a8a0853601878a921b4bcb1258b47d5ce028c7702a2ba594dd5014c9fd95626d55647255698fa297ed236a419
ripemd-160
3e3d4744130a565938002d8e1f1c0147ed4f03c1
Diameter
42984030
Circumference
135038312.86968
Area
1.451122722885E+15
Volume
4.1583401769446E+22
Surface area
5.8044908915399E+15
Circumference
135038312.86968
Perimeter
85968060
Area
461906708760225
Diagonal
30394299.095726
Surface area
2771440252561350
Volume
9.9273059132754E+21
Space diagonal
37225261.937032
Perimeter
64476045
Area
2.0001147198241E+14
Altitude
18612630.968516
Surface area
2.0001147198241E+14
Volume
1.1699442216984E+21
Height
10131433.031909