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126388 = 22191663
BaseRepresentation
bin11110110110110100
320102101001
4132312310
513021023
62413044
71034323
oct366664
9212331
10126388
1186a59
1261184
13456b2
14340ba
15276ad
hex1edb4

126388 has 12 divisors (see below), whose sum is σ = 232960. Its totient is φ = 59832.

The previous prime is 126359. The next prime is 126397. The reversal of 126388 is 883621.

It is a hoax number, since the sum of its digits (28) 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756 + ... + 907.

2126388 is an apocalyptic number.

It is an amenable number.

126388 is a deficient number, since it is larger than the sum of its proper divisors (106572).

126388 is a wasteful number, since it uses less digits than its factorization.

126388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686 (or 1684 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 126388 is about 355.5108999735. The cubic root of 126388 is about 50.1843858679.

It can be divided in two parts, 12 and 6388, that added together give a square (6400 = 802).

The spelling of 126388 in words is "one hundred twenty-six thousand, three hundred eighty-eight".

Divisors: 1 2 4 19 38 76 1663 3326 6652 31597 63194 126388