Base | Representation |
---|---|
bin | 101111101111… |
… | …011011010110 |
3 | 212112211101122 |
4 | 233233123112 |
5 | 11200440110 |
6 | 1124123542 |
7 | 211242653 |
oct | 57573326 |
9 | 25484348 |
10 | 12515030 |
11 | 7078800 |
12 | 42365b2 |
13 | 2792558 |
14 | 193ac2a |
15 | 1173255 |
hex | bef6d6 |
12515030 has 24 divisors (see below), whose sum is σ = 24763536. Its totient is φ = 4550480.
The previous prime is 12515029. The next prime is 12515033. The reversal of 12515030 is 3051521.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12515033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3962 + ... + 6381.
It is an arithmetic number, because the mean of its divisors is an integer number (1031814).
Almost surely, 212515030 is an apocalyptic number.
12515030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12515030 is a deficient number, since it is larger than the sum of its proper divisors (12248506).
12515030 is a wasteful number, since it uses less digits than its factorization.
12515030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10372 (or 10361 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 17.
The square root of 12515030 is about 3537.6588303566. The cubic root of 12515030 is about 232.1724218644.
Adding to 12515030 its reverse (3051521), we get a palindrome (15566551).
The spelling of 12515030 in words is "twelve million, five hundred fifteen thousand, thirty".
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