21293857 is an odd 8-digits composite number following 21293856
and preceding 21293858 . In scientific notation, it is written as 2.1293857 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 19625088 positive integers (up to 21293857) that are relatively prime to 21293857.
21293857 has 8 divisors, whose sum is 22967784
The reverse of 21293857 is 75839212
Previous prime number is 1373
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million two hundred ninety-three thousand eight hundred fifty-seven
Scientific notation
2.1293857 × 10^7
Engineering notation
2.1293857 × 10^6
Prime Factorization
13 × 1373 × 1193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21293857
Product of the distinct prime numbers
The prime factorization of 21293857 is 13 × 1373 × 1193.
Since it has a total of 3 prime factors.
4 , 5 , 76 , 90 , 225 , 484 , 6541 , 1408 , 41075 , 74888 , 392337 , 879870 , 8350186 , 6580803 , 4657492 , 91572438 , 341832150 , 77660395 , 11875569 , 1968768699
n×2
42587714
n×3
63881571
n×4
85175428
n×5
106469285
n÷2
10646928.5
n÷3
7097952.3333333
n÷3
5323464.25
n÷5
4258771.4
n2
453428345936449
n3
9.6552383581173E+21
n4
2.0559726489866E+29
n5
4.3779587583433E+36
2 √n
4614.526736297
3 √n
277.1733331071
4 √n
67.930307936127
5 √n
29.21802569301
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
-21293856
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 21293857 can be divided by 8 positive divisors.
The sum of these divisors (counting 21293857) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001110101100100001
3
Ternary
1111001211200101
4
Quaternary
1101032230201
5
Quinary
20422400412
6
Senary
2040222401
8
Octal
121165441
10
Decimal
21293857
12
Duodecimal
716aa01
16
Hexadecimal
144eb21
20
Vigesimal
6d1ech
36
Base36
coeg1
md5
b44a363ed872ce75652e536d3f05182c
sha1
f2349923f68597d30f8eb812a2945f4c9e48d32e
sha256
5bb9776212936f0e91b2e62500c0abade1e12a51011bf1f76455a6dd593d7929
sha512
7fcc137c7d2b621a98bfff934bf060888fb747a9e4cafc898dc0fdb5e58125d7b3a92a54dfd4072646401908348c9850cb536c5e45b39d9d6612b0b62a276461
ripemd-160
343affb5edc2b9f7c4a7cbaea13389ceaade9179
Diameter
42587714
Circumference
133793249.43558
Area
1.4244871605233E+15
Volume
4.0443767859359E+22
Surface area
5.6979486420933E+15
Circumference
133793249.43558
Perimeter
85175428
Area
453428345936449
Diagonal
30114061.364633
Surface area
2720570075618694
Volume
9.6552383581173E+21
Space diagonal
36882042.213106
Perimeter
63881571
Area
1.9634023318846E+14
Altitude
18441021.106553
Surface area
1.9634023318846E+14
Volume
1.1378807528329E+21
Height
10038020.454878