21431657 is an odd 8-digits composite number following 21431656
and preceding 21431658 . In scientific notation, it is written as 2.1431657 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19783056 positive integers (up to 21431657) that are relatively prime to 21431657.
21431657 has 4 divisors, whose sum is 23080260
The reverse of 21431657 is 75613412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred thirty-one thousand six hundred fifty-seven
Scientific notation
2.1431657 × 10^7
Engineering notation
2.1431657 × 10^6
Prime Factorization
13 × 1648589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21431657
Product of the distinct prime numbers
The prime factorization of 21431657 is 13 × 1648589.
Since it has a total of 2 prime factors.
5 , 5 , 3 , 38 , 861 , 610 , 7965 , 7939 , 84226 , 23120 , 953049 , 393658 , 67537 , 9890785 , 72887751 , 91014333 , 903306893 , 920342548 , 4900219953 , 8005030997
n×2
42863314
n×3
64294971
n×4
85726628
n×5
107158285
n÷2
10715828.5
n÷3
7143885.6666667
n÷3
5357914.25
n÷5
4286331.4
n2
459315921765649
n3
9.8439012899202E+21
n4
2.1097111598743E+29
n5
4.5214605947498E+36
2 √n
4629.4337666717
3 √n
277.76994320422
4 √n
68.039942435835
5 √n
29.255744196818
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
-21431656
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 21431657 can be divided by 4 positive divisors.
The sum of these divisors (counting 21431657) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110000010101101001
3
Ternary
1111022211201002
4
Quaternary
1101300111221
5
Quinary
20441303112
6
Senary
2043204345
8
Octal
121602551
10
Decimal
21431657
12
Duodecimal
72166b5
16
Hexadecimal
1470569
20
Vigesimal
6dij2h
36
Base36
crcrt
md5
1904aac40a19242c1f2f659d6ff3a694
sha1
f66d76f2703b94e91ee6b4eaba1c863391453d18
sha256
5c40da74864177ca5afa179a547cfd88d8316f5938896219f4be67b8ce2ea215
sha512
17a24e85de9c2f4d6f573249b585ac9917e84079ae3d6f76825e4e263d26f631b219679706175db6082f3749be9875711ac4e67e13d09cebd3b6fc2319413dfd
ripemd-160
28eddf123de938173a410c393956c2ae0cb1c078
Diameter
42863314
Circumference
134659072.37091
Area
1.4429835254958E+15
Volume
4.1234037300102E+22
Surface area
5.7719341019831E+15
Circumference
134659072.37091
Perimeter
85726628
Area
459315921765649
Diagonal
30308939.993528
Surface area
2755895530593894
Volume
9.8439012899202E+21
Space diagonal
37120718.814389
Perimeter
64294971
Area
1.9888962830586E+14
Altitude
18560359.407195
Surface area
1.9888962830586E+14
Volume
1.1601148925723E+21
Height
10102979.997843