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68127766530 = 2353177163803
BaseRepresentation
bin111111011100101110…
…110011100000000010
320111211221102010101020
4333130232303200002
52104011202012110
651144130250310
74631161314015
oct773456634002
9214757363336
1068127766530
112699039138a
1211253a26996
1365695b62b5
1434240d937c
151b8b089d70
hexfdcbb3802

68127766530 has 32 divisors (see below), whose sum is σ = 164022456384. Its totient is φ = 18110091456.

The previous prime is 68127766517. The next prime is 68127766571. The reversal of 68127766530 is 3566772186.

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 15 ways as a sum of consecutive naturals, for example, 3572392 + ... + 3591411.

It is an arithmetic number, because the mean of its divisors is an integer number (5125701762).

Almost surely, 268127766530 is an apocalyptic number.

68127766530 is an abundant number, since it is smaller than the sum of its proper divisors (95894689854).

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

68127766530 is a wasteful number, since it uses less digits than its factorization.

68127766530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164130.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 68127766530 in words is "sixty-eight billion, one hundred twenty-seven million, seven hundred sixty-six thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 317 634 951 1585 1902 3170 4755 9510 7163803 14327606 21491409 35819015 42982818 71638030 107457045 214914090 2270925551 4541851102 6812776653 11354627755 13625553306 22709255510 34063883265 68127766530