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12779501230 = 252397753299
BaseRepresentation
bin10111110011011011…
…11011011010101110
31012222121212221000101
423321231323122232
5202133023014410
65512033021314
7631454653036
oct137155733256
935877787011
1012779501230
115468771471
1225879b483a
1312887bb262
1489336c8c6
154ebde8d3a
hex2f9b7b6ae

12779501230 has 16 divisors (see below), whose sum is σ = 23004493200. Its totient is φ = 5111491392.

The previous prime is 12779501227. The next prime is 12779501243. The reversal of 12779501230 is 3210597721.

It is a self number, because there is not a number n which added to its sum of digits gives 12779501230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213121 + ... + 266419.

It is an arithmetic number, because the mean of its divisors is an integer number (1437780825).

Almost surely, 212779501230 is an apocalyptic number.

12779501230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12779501230 is a deficient number, since it is larger than the sum of its proper divisors (10224991970).

12779501230 is a wasteful number, since it uses less digits than its factorization.

12779501230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77283.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 12779501230 in words is "twelve billion, seven hundred seventy-nine million, five hundred one thousand, two hundred thirty".

Divisors: 1 2 5 10 23977 47954 53299 106598 119885 239770 266495 532990 1277950123 2555900246 6389750615 12779501230