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68259393 = 3214515227
BaseRepresentation
bin1000001000110…
…00111001000001
311202102221021200
410010120321001
5114433300033
610435011413
71456123656
oct404307101
9152387250
1068259393
1135592324
121aa39b69
13111ac497
1490cbc2d
155ed5013
hex4118e41

68259393 has 12 divisors (see below), whose sum is σ = 98683728. Its totient is φ = 45466200.

The previous prime is 68259371. The next prime is 68259421. The reversal of 68259393 is 39395286.

68259393 is a `hidden beast` number, since 6 + 8 + 259 + 393 = 666.

It is not a de Polignac number, because 68259393 - 213 = 68251201 is a prime.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (68255393) 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, 10446 + ... + 15672.

It is an arithmetic number, because the mean of its divisors is an integer number (8223644).

Almost surely, 268259393 is an apocalyptic number.

It is an amenable number.

68259393 is a deficient number, since it is larger than the sum of its proper divisors (30424335).

68259393 is a wasteful number, since it uses less digits than its factorization.

68259393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684 (or 6681 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 68259393 is about 8261.9242915921. The cubic root of 68259393 is about 408.6838481168.

The spelling of 68259393 in words is "sixty-eight million, two hundred fifty-nine thousand, three hundred ninety-three".

Divisors: 1 3 9 1451 4353 5227 13059 15681 47043 7584377 22753131 68259393