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12580016 = 24786251
BaseRepresentation
bin101111111111…
…010010110000
3212200010112112
4233333102300
511210030031
61125344452
7211633301
oct57772260
925603475
1012580016
117112609
124268128
1327b5cc7
1419567a8
15118762b
hexbff4b0

12580016 has 10 divisors (see below), whose sum is σ = 24373812. Its totient is φ = 6290000.

The previous prime is 12580003. The next prime is 12580019. The reversal of 12580016 is 61008521.

It is a junction number, because it is equal to n+sod(n) for n = 12579973 and 12580000.

It is not an unprimeable number, because it can be changed into a prime (12580019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393110 + ... + 393141.

Almost surely, 212580016 is an apocalyptic number.

12580016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12580016 is a deficient number, since it is larger than the sum of its proper divisors (11793796).

12580016 is an equidigital number, since it uses as much as digits as its factorization.

12580016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786259 (or 786253 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 12580016 is about 3546.8318257284. The cubic root of 12580016 is about 232.5735906100.

Adding to 12580016 its reverse (61008521), we get a palindrome (73588537).

The spelling of 12580016 in words is "twelve million, five hundred eighty thousand, sixteen".

Divisors: 1 2 4 8 16 786251 1572502 3145004 6290008 12580016