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206394464 = 256449827
BaseRepresentation
bin11000100110101…
…01010001100000
3112101100220222102
430103111101200
5410314110324
632251425532
75054216063
oct1423252140
9471326872
10206394464
11a6560241
12591552a8
13339b5a03
141d5a88da
15131bddae
hexc4d5460

206394464 has 12 divisors (see below), whose sum is σ = 406339164. Its totient is φ = 103197216.

The previous prime is 206394457. The next prime is 206394491. The reversal of 206394464 is 464493602.

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 as a sum of consecutive naturals, namely, 3224882 + ... + 3224945.

It is an arithmetic number, because the mean of its divisors is an integer number (33861597).

Almost surely, 2206394464 is an apocalyptic number.

It is an amenable number.

206394464 is a deficient number, since it is larger than the sum of its proper divisors (199944700).

206394464 is an equidigital number, since it uses as much as digits as its factorization.

206394464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449837 (or 6449829 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 206394464 is about 14366.4353268304. The cubic root of 206394464 is about 590.9707890277.

The spelling of 206394464 in words is "two hundred six million, three hundred ninety-four thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 32 6449827 12899654 25799308 51598616 103197232 206394464