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12480705 = 325535233
BaseRepresentation
bin101111100111…
…000011000001
3212111002022100
4233213003001
511143340310
61123301013
7211040616
oct57470301
925432270
1012480705
117054a36
12421a769
13277ca43
14192c50d
151167ec0
hexbe70c1

12480705 has 24 divisors (see below), whose sum is σ = 22045608. Its totient is φ = 6529536.

The previous prime is 12480679. The next prime is 12480733. The reversal of 12480705 is 50708421.

12480705 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5574321 + 6906384 = 2361^2 + 2628^2 .

It is not a de Polignac number, because 12480705 - 25 = 12480673 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232 + ... + 5001.

It is an arithmetic number, because the mean of its divisors is an integer number (918567).

Almost surely, 212480705 is an apocalyptic number.

12480705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12480705 is a deficient number, since it is larger than the sum of its proper divisors (9564903).

12480705 is a wasteful number, since it uses less digits than its factorization.

12480705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297 (or 5294 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12480705 is about 3532.8041270356. The cubic root of 12480705 is about 231.9599675774.

The spelling of 12480705 in words is "twelve million, four hundred eighty thousand, seven hundred five".

Divisors: 1 3 5 9 15 45 53 159 265 477 795 2385 5233 15699 26165 47097 78495 235485 277349 832047 1386745 2496141 4160235 12480705