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68330646 = 23225714771
BaseRepresentation
bin1000001001010…
…10010010010110
311202120120000200
410010222102112
5114443040041
610440321330
71456541466
oct404522226
9152516020
1068330646
113563090a
121aa73246
1311205a47
149109ba6
155eeb1b6
hex412a496

68330646 has 24 divisors (see below), whose sum is σ = 148635864. Its totient is φ = 22686720.

The previous prime is 68330617. The next prime is 68330651. The reversal of 68330646 is 64603386.

68330646 is a `hidden beast` number, since 6 + 8 + 3 + 3 + 0 + 646 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68330646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2760 + ... + 12011.

It is an arithmetic number, because the mean of its divisors is an integer number (6193161).

Almost surely, 268330646 is an apocalyptic number.

68330646 is an abundant number, since it is smaller than the sum of its proper divisors (80305218).

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

68330646 is a wasteful number, since it uses less digits than its factorization.

68330646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15036 (or 15033 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 68330646 is about 8266.2352978850. The cubic root of 68330646 is about 408.8260010742.

It can be divided in two parts, 683 and 30646, that added together give a square (31329 = 1772).

The spelling of 68330646 in words is "sixty-eight million, three hundred thirty thousand, six hundred forty-six".

Divisors: 1 2 3 6 9 18 257 514 771 1542 2313 4626 14771 29542 44313 88626 132939 265878 3796147 7592294 11388441 22776882 34165323 68330646