21568997 is an odd 8-digits composite number following 21568996
and preceding 21568998 . In scientific notation, it is written as 2.1568997 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 21500640 positive integers (up to 21568997) that are relatively prime to 21568997.
21568997 has 4 divisors, whose sum is 21637356
The reverse of 21568997 is 79986512
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million five hundred sixty-eight thousand nine hundred ninety-seven
Scientific notation
2.1568997 × 10^7
Engineering notation
2.1568997 × 10^6
Prime Factorization
317 × 68041
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21568997
Product of the distinct prime numbers
The prime factorization of 21568997 is 317 × 68041.
Since it has a total of 2 prime factors.
8 , 10 , 78 , 40 , 397 , 512 , 8576 , 136 , 62600 , 40001 , 486113 , 855670 , 3761110 , 8703124 , 53802761 , 84730340 , 775046239 , 628362916 , 7964226332 , 1316082333
n×2
43137994
n×3
64706991
n×4
86275988
n×5
107844985
n÷2
10784498.5
n÷3
7189665.6666667
n÷3
5392249.25
n÷5
4313799.4
n2
465221631586009
n3
1.0034363976014E+22
n4
2.1643116649555E+29
n5
4.668203180849E+36
2 √n
4644.243426006
3 √n
278.3620225327
4 √n
68.148686164929
5 √n
29.293144235368
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
-21568996
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 21568997 can be divided by 4 positive divisors.
The sum of these divisors (counting 21568997) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010010001110111100101
3
Ternary
1111120211002202
4
Quaternary
1102101313211
5
Quinary
21010201442
6
Senary
2050144245
8
Octal
122216745
10
Decimal
21568997
12
Duodecimal
7282085
16
Hexadecimal
1491de5
20
Vigesimal
6eg29h
36
Base36
cuaqt
md5
cf5b82ad0822fa83118f8e778b193dec
sha1
2e62f3e7c8cff54b4fdb6f2b3cdb0b8e70cf5900
sha256
2aa5c737b56bd73bfbf2259cac0561c570fe00aafb37f355d980e23ef1aa82f1
sha512
a02c50ec3c80d8fc59a183c57d4f54e1842e9a0d1571d478dfb1f6a8ece62ebcf424199effc4bc627443272a7719b683b34db17072c6b5251d5882d31b39a4ca
ripemd-160
f71028ef3a2ff5389bc26aa69d78dc0958051088
Diameter
43137994
Circumference
135522005.041
Area
1.4615368600817E+15
Volume
4.2031845533988E+22
Surface area
5.8461474403267E+15
Circumference
135522005.041
Perimeter
86275988
Area
465221631586009
Diagonal
30503168.084185
Surface area
2791329789516054
Volume
1.0034363976014E+22
Space diagonal
37358598.672301
Perimeter
64706991
Area
2.0144687567176E+14
Altitude
18679299.33615
Surface area
2.0144687567176E+14
Volume
1.1825611353889E+21
Height
10167722.694728