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12685460 = 225634273
BaseRepresentation
bin110000011001…
…000010010100
3212212111011212
4300121002110
511221413320
61131520552
7212552564
oct60310224
925774155
1012685460
117184857
1242b9158
132821cb8
141982da4
1511a89c5
hexc19094

12685460 has 12 divisors (see below), whose sum is σ = 26639508. Its totient is φ = 5074176.

The previous prime is 12685459. The next prime is 12685481. The reversal of 12685460 is 6458621.

It can be written as a sum of positive squares in 2 ways, for example, as 2775556 + 9909904 = 1666^2 + 3148^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317117 + ... + 317156.

It is an arithmetic number, because the mean of its divisors is an integer number (2219959).

Almost surely, 212685460 is an apocalyptic number.

12685460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12685460 is an abundant number, since it is smaller than the sum of its proper divisors (13954048).

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

12685460 is a wasteful number, since it uses less digits than its factorization.

12685460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634282 (or 634280 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12685460 is about 3561.6653408202. The cubic root of 12685460 is about 233.2215836768.

The spelling of 12685460 in words is "twelve million, six hundred eighty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 634273 1268546 2537092 3171365 6342730 12685460