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12697263 = 331953467
BaseRepresentation
bin110000011011…
…111010101111
3212220002101000
4300123322233
511222303023
61132051343
7212632155
oct60337257
925802330
1012697263
117192707
124303b53
132827497
1419873d5
1511ac243
hexc1beaf

12697263 has 32 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 7851168.

The previous prime is 12697261. The next prime is 12697303. The reversal of 12697263 is 36279621.

It is not a de Polignac number, because 12697263 - 21 = 12697261 is a prime.

It is a super-2 number, since 2×126972632 = 322440975382338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12697261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26956 + ... + 27422.

It is an arithmetic number, because the mean of its divisors is an integer number (631800).

Almost surely, 212697263 is an apocalyptic number.

12697263 is a deficient number, since it is larger than the sum of its proper divisors (7520337).

12697263 is a wasteful number, since it uses less digits than its factorization.

12697263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 542 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 12697263 is about 3563.3219051890. The cubic root of 12697263 is about 233.2938937876.

The spelling of 12697263 in words is "twelve million, six hundred ninety-seven thousand, two hundred sixty-three".

Divisors: 1 3 9 19 27 53 57 159 171 467 477 513 1007 1401 1431 3021 4203 8873 9063 12609 24751 26619 27189 74253 79857 222759 239571 470269 668277 1410807 4232421 12697263