21495986 is an even 8-digits composite number following 21495985
and preceding 21495987 . In scientific notation, it is written as 2.1495986 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 10736820 positive integers (up to 21495986) that are relatively prime to 21495986.
21495986 has 8 divisors, whose sum is 32277504
The reverse of 21495986 is 68959412
Previous prime number is 1063
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million four hundred ninety-five thousand nine hundred eighty-six
Scientific notation
2.1495986 × 10^7
Engineering notation
2.1495986 × 10^6
Prime Factorization
2 × 1063 × 10111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21495986
Product of the distinct prime numbers
The prime factorization of 21495986 is 2 × 1063 × 10111.
Since it has a total of 3 prime factors.
6 , 2 , 40 , 53 , 325 , 855 , 87 , 7826 , 91139 , 47490 , 393691 , 394036 , 7096677 , 6558134 , 34685830 , 5637999 , 509343321 , 764486233 , 7874422036 , 3739596649
n×2
42991972
n×3
64487958
n×4
85983944
n×5
107479930
n÷2
10747993
n÷3
7165328.6666667
n÷3
5373996.5
n÷5
4299197.2
n2
462077414112196
n3
9.932809624672E+21
n4
2.1351553663261E+29
n5
4.5897269862372E+36
2 √n
4636.3763867917
3 √n
278.04758255971
4 √n
68.090942031901
5 √n
29.273285885198
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21495985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21495986 can be divided by 8 positive divisors.
The sum of these divisors (counting 21495986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000000010110010
3
Ternary
1111110002221122
4
Quaternary
1102000002302
5
Quinary
21000332421
6
Senary
2044422242
8
Octal
122000262
10
Decimal
21495986
12
Duodecimal
7247982
16
Hexadecimal
14800b2
20
Vigesimal
6e6jj6
36
Base36
csqeq
md5
84bbd0eafa18a197984a66a6981d63ed
sha1
2676ad6a43bc1024532bae18b6fd9ff7dad70fe1
sha256
737f6bb7d78007b9036ff28d98c0e310ef00b64e95da896cb302da4a6031d1a1
sha512
2543822f8433493b830e281f03b810af831b07aa39bbbbf69518cb5d8b1e83b87110194d9444a53b5b88389871dd5491af3e80663382e59ed0a96a3a9de4bc5e
ripemd-160
ecf0df0f8304574bddc56316ea5f5ec9bea79dd2
Diameter
42991972
Circumference
135063263.39854
Area
1.4516590095646E+15
Volume
4.1606455661834E+22
Surface area
5.8066360382586E+15
Circumference
135063263.39854
Perimeter
85983944
Area
462077414112196
Diagonal
30399914.937782
Surface area
2772464484673176
Volume
9.932809624672E+21
Space diagonal
37232139.910789
Perimeter
64487958
Area
2.0008538956809E+14
Altitude
18616069.955395
Surface area
2.0008538956809E+14
Volume
1.1705928403068E+21
Height
10133304.979261