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196286209 = 7323139179
BaseRepresentation
bin10111011001100…
…01011100000001
3111200100101001121
423230301130001
5400222124314
631251032241
74602256000
oct1354613401
9450311047
10196286209
11a0886809
125589b681
1331886ab2
141c0d6c37
1512373d24
hexbb31701

196286209 has 32 divisors (see below), whose sum is σ = 241920000. Its totient is φ = 158879952.

The previous prime is 196286201. The next prime is 196286249. The reversal of 196286209 is 902682691.

It is not a de Polignac number, because 196286209 - 23 = 196286201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196286201) 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 31 ways as a sum of consecutive naturals, for example, 1096482 + ... + 1096660.

It is an arithmetic number, because the mean of its divisors is an integer number (7560000).

Almost surely, 2196286209 is an apocalyptic number.

It is an amenable number.

196286209 is a deficient number, since it is larger than the sum of its proper divisors (45633791).

196286209 is a wasteful number, since it uses less digits than its factorization.

196286209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 196286209 is about 14010.2180211444. The cubic root of 196286209 is about 581.1611784885.

The spelling of 196286209 in words is "one hundred ninety-six million, two hundred eighty-six thousand, two hundred nine".

Divisors: 1 7 23 49 139 161 179 343 973 1127 1253 3197 4117 6811 7889 8771 22379 24881 28819 47677 61397 156653 174167 201733 572263 1096571 1219169 1412131 4005841 8534183 28040887 196286209