Base | Representation |
---|---|
bin | 100110111100… |
… | …0001010001010 |
3 | 1102102012021100 |
4 | 1031320022022 |
5 | 20211240424 |
6 | 2005322230 |
7 | 335345166 |
oct | 115701212 |
9 | 42365240 |
10 | 20415114 |
11 | 105841a5 |
12 | 6a06376 |
13 | 42ca365 |
14 | 29d5ca6 |
15 | 1bd3dc9 |
hex | 137828a |
20415114 has 24 divisors (see below), whose sum is σ = 44960292. Its totient is φ = 6693120.
The previous prime is 20415103. The next prime is 20415119. The reversal of 20415114 is 41151402.
It can be written as a sum of positive squares in 2 ways, for example, as 19053225 + 1361889 = 4365^2 + 1167^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (20415119) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8199 + ... + 10394.
Almost surely, 220415114 is an apocalyptic number.
20415114 is an abundant number, since it is smaller than the sum of its proper divisors (24545178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20415114 is a wasteful number, since it uses less digits than its factorization.
20415114 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18662 (or 18659 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 20415114 is about 4518.3087543903. The cubic root of 20415114 is about 273.3069043783.
Adding to 20415114 its reverse (41151402), we get a palindrome (61566516).
The spelling of 20415114 in words is "twenty million, four hundred fifteen thousand, one hundred fourteen".
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