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20344712 = 237932191
BaseRepresentation
bin100110110011…
…0111110001000
31102021121200212
41031212332020
520202012322
62004020252
7334633013
oct115467610
942247625
1020344712
1110536313
126991688
1342a42bb
1429b837a
151bbd0e2
hex1366f88

20344712 has 16 divisors (see below), whose sum is σ = 38630400. Its totient is φ = 10043280.

The previous prime is 20344703. The next prime is 20344759. The reversal of 20344712 is 21744302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15464 + ... + 16727.

It is an arithmetic number, because the mean of its divisors is an integer number (2414400).

Almost surely, 220344712 is an apocalyptic number.

It is an amenable number.

20344712 is a deficient number, since it is larger than the sum of its proper divisors (18285688).

20344712 is a wasteful number, since it uses less digits than its factorization.

20344712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32276 (or 32272 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20344712 is about 4510.5112792232. The cubic root of 20344712 is about 272.9923741200.

The spelling of 20344712 in words is "twenty million, three hundred forty-four thousand, seven hundred twelve".

Divisors: 1 2 4 8 79 158 316 632 32191 64382 128764 257528 2543089 5086178 10172356 20344712