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12515016 = 2331972647
BaseRepresentation
bin101111101111…
…011011001000
3212112211101010
4233233123020
511200440031
61124123520
7211242633
oct57573310
925484333
1012515016
117078798
1242365a0
132792547
14193ac1a
151173246
hexbef6c8

12515016 has 32 divisors (see below), whose sum is σ = 31458240. Its totient is φ = 4148928.

The previous prime is 12515003. The next prime is 12515023. The reversal of 12515016 is 61051521.

It is a junction number, because it is equal to n+sod(n) for n = 12514983 and 12515001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3405 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (983070).

Almost surely, 212515016 is an apocalyptic number.

It is an amenable number.

12515016 is an abundant number, since it is smaller than the sum of its proper divisors (18943224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12515016 is a wasteful number, since it uses less digits than its factorization.

12515016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 12515016 is about 3537.6568516463. The cubic root of 12515016 is about 232.1723352907.

Adding to 12515016 its reverse (61051521), we get a palindrome (73566537).

The spelling of 12515016 in words is "twelve million, five hundred fifteen thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 24 197 394 591 788 1182 1576 2364 2647 4728 5294 7941 10588 15882 21176 31764 63528 521459 1042918 1564377 2085836 3128754 4171672 6257508 12515016