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12700386 = 2326710531
BaseRepresentation
bin110000011100…
…101011100010
3212220020122200
4300130223202
511222403021
61132114030
7212644236
oct60345342
925806580
1012700386
117194a96
124305916
132828a2a
1419885c6
1511ad126
hexc1cae2

12700386 has 24 divisors (see below), whose sum is σ = 27930864. Its totient is φ = 4169880.

The previous prime is 12700333. The next prime is 12700397. The reversal of 12700386 is 68300721.

It is a super-2 number, since 2×127003862 = 322599609097992, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4060 + ... + 6471.

It is an arithmetic number, because the mean of its divisors is an integer number (1163786).

Almost surely, 212700386 is an apocalyptic number.

12700386 is an abundant number, since it is smaller than the sum of its proper divisors (15230478).

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

12700386 is a wasteful number, since it uses less digits than its factorization.

12700386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10606 (or 10603 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12700386 is about 3563.7600929356. The cubic root of 12700386 is about 233.3130190932.

The spelling of 12700386 in words is "twelve million, seven hundred thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 67 134 201 402 603 1206 10531 21062 31593 63186 94779 189558 705577 1411154 2116731 4233462 6350193 12700386