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12488932550 = 2521438917359
BaseRepresentation
bin10111010000110010…
…11111110011000110
31012020101010111201102
423220121133303012
5201034131320200
65423133100102
7621326114033
oct135031376306
935211114642
1012488932550
115329749966
122506627632
131240543223
1486693238a
154d164e6d5
hex2e865fcc6

12488932550 has 24 divisors (see below), whose sum is σ = 23232367200. Its totient is φ = 4994938080.

The previous prime is 12488932549. The next prime is 12488932601. The reversal of 12488932550 is 5523988421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12488932495 and 12488932504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710771 + ... + 728129.

It is an arithmetic number, because the mean of its divisors is an integer number (968015300).

Almost surely, 212488932550 is an apocalyptic number.

12488932550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12488932550 is a deficient number, since it is larger than the sum of its proper divisors (10743434650).

12488932550 is a wasteful number, since it uses less digits than its factorization.

12488932550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31760 (or 31755 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 12488932550 in words is "twelve billion, four hundred eighty-eight million, nine hundred thirty-two thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 14389 17359 28778 34718 71945 86795 143890 173590 359725 433975 719450 867950 249778651 499557302 1248893255 2497786510 6244466275 12488932550