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208494996 = 223139239523
BaseRepresentation
bin11000110110101…
…10000110010100
3112112022122100220
430123112012110
5411333314441
632404434340
75111115063
oct1433260624
9475278326
10208494996
11a7765416
12599a89b0
133426cb28
141d9941da
1513486466
hexc6d6194

208494996 has 48 divisors (see below), whose sum is σ = 492979200. Its totient is φ = 68578272.

The previous prime is 208494973. The next prime is 208495019. The reversal of 208494996 is 699494802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (208494973) and next prime (208495019).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 398391 + ... + 398913.

It is an arithmetic number, because the mean of its divisors is an integer number (10270400).

Almost surely, 2208494996 is an apocalyptic number.

It is an amenable number.

208494996 is an abundant number, since it is smaller than the sum of its proper divisors (284484204).

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

208494996 is a wasteful number, since it uses less digits than its factorization.

208494996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 208494996 is about 14439.3558028051. The cubic root of 208494996 is about 592.9688489315.

The spelling of 208494996 in words is "two hundred eight million, four hundred ninety-four thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 139 239 278 417 478 523 556 717 834 956 1046 1434 1569 1668 2092 2868 3138 6276 33221 66442 72697 99663 124997 132884 145394 199326 218091 249994 290788 374991 398652 436182 499988 749982 872364 1499964 17374583 34749166 52123749 69498332 104247498 208494996