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68330935622820 = 2235131937124614173
BaseRepresentation
bin11111000100101100010010…
…01001010001110010100100
322221221101002101112102011210
433202112021021101302210
532424013224004412240
6401154444245231420
720251514166352443
oct1742261111216244
9287841071472153
1068330935622820
111a854a94858972
1277b6bb0102570
132c1876c4530c0
1412c3340912d5a
157d76a0017780
hex3e2589251ca4

68330935622820 has 192 divisors, whose sum is σ = 222750328308480. Its totient is φ = 15503996823552.

The previous prime is 68330935622813. The next prime is 68330935622867. The reversal of 68330935622820 is 2822653903386.

It is a super-2 number, since 2×683309356228202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61758747 + ... + 62855426.

It is an arithmetic number, because the mean of its divisors is an integer number (1160157959940).

Almost surely, 268330935622820 is an apocalyptic number.

68330935622820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68330935622820 is an abundant number, since it is smaller than the sum of its proper divisors (154419392685660).

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

68330935622820 is a wasteful number, since it uses less digits than its factorization.

68330935622820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124614254 (or 124614252 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 57.

The spelling of 68330935622820 in words is "sixty-eight trillion, three hundred thirty billion, nine hundred thirty-five million, six hundred twenty-two thousand, eight hundred twenty".