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206606312 = 23117333203
BaseRepresentation
bin11000101000010…
…00111111101000
3112101202200120122
430110020333220
5410342400222
632300142412
75056060523
oct1424107750
9471680518
10206606312
11a6695420
1259237a08
1333a5b273
141d621bba
1513211a42
hexc508fe8

206606312 has 32 divisors (see below), whose sum is σ = 423312480. Its totient is φ = 93754560.

The previous prime is 206606303. The next prime is 206606317. The reversal of 206606312 is 213606602.

It is not an unprimeable number, because it can be changed into a prime (206606317) 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 7 ways as a sum of consecutive naturals, for example, 62903 + ... + 66105.

It is an arithmetic number, because the mean of its divisors is an integer number (13228515).

Almost surely, 2206606312 is an apocalyptic number.

206606312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206606312 is an abundant number, since it is smaller than the sum of its proper divisors (216706168).

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

206606312 is a wasteful number, since it uses less digits than its factorization.

206606312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 206606312 is about 14373.8064547983. The cubic root of 206606312 is about 591.1729152008.

The spelling of 206606312 in words is "two hundred six million, six hundred six thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 733 1466 2932 3203 5864 6406 8063 12812 16126 25624 32252 35233 64504 70466 140932 281864 2347799 4695598 9391196 18782392 25825789 51651578 103303156 206606312