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68258305468 = 22532647121637
BaseRepresentation
bin111111100100100000…
…110001010110111100
320112012001001012010201
4333210200301112330
52104243111233333
651205112213244
74634335011013
oct774440612674
9215161035121
1068258305468
1126a48041201
121128b69a224
13658a660182
143437599a7a
151b9777317d
hexfe48315bc

68258305468 has 24 divisors (see below), whose sum is σ = 121752826272. Its totient is φ = 33472281024.

The previous prime is 68258305447. The next prime is 68258305483. The reversal of 68258305468 is 86450385286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500346 + ... + 621982.

It is an arithmetic number, because the mean of its divisors is an integer number (5073034428).

Almost surely, 268258305468 is an apocalyptic number.

It is an amenable number.

68258305468 is a deficient number, since it is larger than the sum of its proper divisors (53494520804).

68258305468 is a wasteful number, since it uses less digits than its factorization.

68258305468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124341 (or 124339 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 55.

The spelling of 68258305468 in words is "sixty-eight billion, two hundred fifty-eight million, three hundred five thousand, four hundred sixty-eight".

Divisors: 1 2 4 53 106 212 2647 5294 10588 121637 140291 243274 280582 486548 561164 6446761 12893522 25787044 321973139 643946278 1287892556 17064576367 34129152734 68258305468