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208299472 = 2413018717
BaseRepresentation
bin11000110101001…
…10010111010000
3112111221201011021
430122212113100
5411311040342
632400325224
75106342043
oct1432462720
9474851137
10208299472
11a7641527
1259913814
1334201b34
141d942c5a
1513448567
hexc6a65d0

208299472 has 10 divisors (see below), whose sum is σ = 403580258. Its totient is φ = 104149728.

The previous prime is 208299461. The next prime is 208299473. The reversal of 208299472 is 274992802.

It can be written as a sum of positive squares in only one way, i.e., 165997456 + 42302016 = 12884^2 + 6504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208299473) 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 as a sum of consecutive naturals, namely, 6509343 + ... + 6509374.

Almost surely, 2208299472 is an apocalyptic number.

It is an amenable number.

208299472 is a deficient number, since it is larger than the sum of its proper divisors (195280786).

208299472 is a wasteful number, since it uses less digits than its factorization.

208299472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13018725 (or 13018719 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 208299472 is about 14432.5836910790. The cubic root of 208299472 is about 592.7834313682.

The spelling of 208299472 in words is "two hundred eight million, two hundred ninety-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 13018717 26037434 52074868 104149736 208299472