21395087 is an odd 8-digits composite number following 21395086
and preceding 21395088 . In scientific notation, it is written as 2.1395087 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 18245304 positive integers (up to 21395087) that are relatively prime to 21395087.
21395087 has 8 divisors, whose sum is 24576000
The reverse of 21395087 is 78059312
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million three hundred ninety-five thousand eighty-seven
Scientific notation
2.1395087 × 10^7
Engineering notation
2.1395087 × 10^6
Prime Factorization
7 × 199 × 15359
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21395087
Product of the distinct prime numbers
The prime factorization of 21395087 is 7 × 199 × 15359.
Since it has a total of 3 prime factors.
10 , 6 , 43 , 48 , 541 , 172 , 5186 , 7885 , 78588 , 5106 , 326993 , 466243 , 7403828 , 594651 , 98138454 , 612217 , 92006397 , 910920722 , 992180571 , 1737473585
n×2
42790174
n×3
64185261
n×4
85580348
n×5
106975435
n÷2
10697543.5
n÷3
7131695.6666667
n÷3
5348771.75
n÷5
4279017.4
n2
457749747737569
n3
9.7935956770733E+21
n4
2.0953483155381E+29
n5
4.4830159506241E+36
2 √n
4625.4823532254
3 √n
277.61186194389
4 √n
68.010898782662
5 √n
29.245753242285
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
-21395086
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 21395087 can be divided by 8 positive divisors.
The sum of these divisors (counting 21395087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100111011010001111
3
Ternary
1111020222112122
4
Quaternary
1101213122033
5
Quinary
20434120322
6
Senary
2042323155
8
Octal
121473217
10
Decimal
21395087
12
Duodecimal
71b94bb
16
Hexadecimal
146768f
20
Vigesimal
6de7e7
36
Base36
cqkjz
md5
49d123ba81a07beffc198ddac6cb58b8
sha1
6f15420b4c90cc604542511313904007d1bcde08
sha256
da16ef87ea9398743fd5826e308be5841a16d82095f9ad8031b5ba881763ca3f
sha512
6203530b2e7fa8d411d59f4e7bad3cc5471d7fe5517ef05f55a850c3e7c7f11eef1b7dabc706b1908ebaf426aca6087298db70ccf42adb8b05fa518b59e2bbc7
ripemd-160
7851d6fcdac24778be59e5f08ea86eae0dd9d2d0
Diameter
42790174
Circumference
134429296.28423
Area
1.4380632446749E+15
Volume
4.1023317641763E+22
Surface area
5.7522529786997E+15
Circumference
134429296.28423
Perimeter
85580348
Area
457749747737569
Diagonal
30257222.203552
Surface area
2746498486425414
Volume
9.7935956770733E+21
Space diagonal
37057377.716356
Perimeter
64185261
Area
1.9821145505833E+14
Altitude
18528688.858178
Surface area
1.9821145505833E+14
Volume
1.154186319243E+21
Height
10085740.734517