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208039264 = 2531209717
BaseRepresentation
bin11000110011001…
…10110101100000
3112111110111012221
430121212311200
5411224224024
632351000424
75104206316
oct1431466540
9474414187
10208039264
11a7483a84
1259809114
1334140574
141d8b60b6
15133e63e4
hexc666d60

208039264 has 24 divisors (see below), whose sum is σ = 422791488. Its totient is φ = 100663680.

The previous prime is 208039261. The next prime is 208039277. The reversal of 208039264 is 462930802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208039261) by changing a digit.

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, 103867 + ... + 105850.

It is an arithmetic number, because the mean of its divisors is an integer number (17616312).

Almost surely, 2208039264 is an apocalyptic number.

It is an amenable number.

208039264 is an abundant number, since it is smaller than the sum of its proper divisors (214752224).

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

208039264 is a wasteful number, since it uses less digits than its factorization.

208039264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209758 (or 209750 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 208039264 is about 14423.5662719038. The cubic root of 208039264 is about 592.5364932094.

The spelling of 208039264 in words is "two hundred eight million, thirty-nine thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 209717 419434 838868 1677736 3355472 6501227 6710944 13002454 26004908 52009816 104019632 208039264