Base | Representation |
---|---|
bin | 110000000111… |
… | …110111100101 |
3 | 212201220201110 |
4 | 300013313211 |
5 | 11212141031 |
6 | 1130215233 |
7 | 212140560 |
oct | 60076745 |
9 | 25656643 |
10 | 12615141 |
11 | 7136a40 |
12 | 4284519 |
13 | 27c8ca6 |
14 | 19654d7 |
15 | 1192c46 |
hex | c07de5 |
12615141 has 32 divisors (see below), whose sum is σ = 21224448. Its totient is φ = 6474240.
The previous prime is 12615121. The next prime is 12615143. The reversal of 12615141 is 14151621.
It is not a de Polignac number, because 12615141 - 26 = 12615077 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12615143) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22126 + ... + 22688.
It is an arithmetic number, because the mean of its divisors is an integer number (663264).
Almost surely, 212615141 is an apocalyptic number.
12615141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
12615141 is a deficient number, since it is larger than the sum of its proper divisors (8609307).
12615141 is a wasteful number, since it uses less digits than its factorization.
12615141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 681.
The product of its digits is 240, while the sum is 21.
The square root of 12615141 is about 3551.7799762936. The cubic root of 12615141 is about 232.7898477818.
Adding to 12615141 its reverse (14151621), we get a palindrome (26766762).
The spelling of 12615141 in words is "twelve million, six hundred fifteen thousand, one hundred forty-one".
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