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12662393212 = 2272193400213
BaseRepresentation
bin10111100101011110…
…01100100101111100
31012200110112020000101
423302233030211330
5201413033040322
65452251010444
7625533365200
oct136257144574
935613466011
1012662393212
115408655487
122554739a24
13126a467781
148819a6b00
154e19b5327
hex2f2bcc97c

12662393212 has 36 divisors (see below), whose sum is σ = 27133707720. Its totient is φ = 5141120544.

The previous prime is 12662393197. The next prime is 12662393213. The reversal of 12662393212 is 21239326621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662393213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1696383 + ... + 1703830.

Almost surely, 212662393212 is an apocalyptic number.

It is an amenable number.

12662393212 is an abundant number, since it is smaller than the sum of its proper divisors (14471314508).

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

12662393212 is a wasteful number, since it uses less digits than its factorization.

12662393212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400250 (or 3400241 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The spelling of 12662393212 in words is "twelve billion, six hundred sixty-two million, three hundred ninety-three thousand, two hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 3400213 6800426 13600852 23801491 47602982 64604047 95205964 129208094 166610437 258416188 333220874 452228329 666441748 904456658 1808913316 3165598303 6331196606 12662393212