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12256270 = 2513293251
BaseRepresentation
bin101110110000…
…010000001110
3212001200102221
4232300100032
511114200040
61114405554
7206114365
oct56602016
925050387
1012256270
116a11354
1241308ba
132701840
1418b07dc
15112174a
hexbb040e

12256270 has 32 divisors (see below), whose sum is σ = 24585120. Its totient is φ = 4368000.

The previous prime is 12256207. The next prime is 12256271. The reversal of 12256270 is 7265221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145 + ... + 5395.

It is an arithmetic number, because the mean of its divisors is an integer number (768285).

Almost surely, 212256270 is an apocalyptic number.

12256270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12256270 is an abundant number, since it is smaller than the sum of its proper divisors (12328850).

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

12256270 is a wasteful number, since it uses less digits than its factorization.

12256270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12256270 is about 3500.8955997002. The cubic root of 12256270 is about 230.5611377390.

The spelling of 12256270 in words is "twelve million, two hundred fifty-six thousand, two hundred seventy".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1885 3251 3770 6502 16255 32510 42263 84526 94279 188558 211315 422630 471395 942790 1225627 2451254 6128135 12256270