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66788 = 2259283
BaseRepresentation
bin10000010011100100
310101121122
4100103210
54114123
61233112
7365501
oct202344
9111548
1066788
11461a7
1232798
1324527
141a4a8
1514bc8
hex104e4

66788 has 12 divisors (see below), whose sum is σ = 119280. Its totient is φ = 32712.

The previous prime is 66763. The next prime is 66791. The reversal of 66788 is 88766.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95 + ... + 377.

It is an arithmetic number, because the mean of its divisors is an integer number (9940).

266788 is an apocalyptic number.

It is an amenable number.

66788 is a deficient number, since it is larger than the sum of its proper divisors (52492).

66788 is a wasteful number, since it uses less digits than its factorization.

66788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 344 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 66788 is about 258.4337439268. The cubic root of 66788 is about 40.5725975235.

The spelling of 66788 in words is "sixty-six thousand, seven hundred eighty-eight".

Divisors: 1 2 4 59 118 236 283 566 1132 16697 33394 66788