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68552058672 = 24341922912157
BaseRepresentation
bin111111110110000001…
…010110011100110000
320112221111210101210000
4333312001112130300
52110343311334142
651254204310000
74644532612236
oct776601263460
9215844711700
1068552058672
1127088939349
1211351b42300
136606481836
1434645c4956
151bb344b14c
hexff6056730

68552058672 has 200 divisors, whose sum is σ = 209781426800. Its totient is φ = 21551712768.

The previous prime is 68552058637. The next prime is 68552058721. The reversal of 68552058672 is 27685025586.

68552058672 is a `hidden beast` number, since 6 + 8 + 5 + 52 + 0 + 586 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 39 ways as a sum of consecutive naturals, for example, 5632818 + ... + 5644974.

It is an arithmetic number, because the mean of its divisors is an integer number (1048907134).

Almost surely, 268552058672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68552058672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104890713400).

68552058672 is an abundant number, since it is smaller than the sum of its proper divisors (141229368128).

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

68552058672 is a wasteful number, since it uses less digits than its factorization.

68552058672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425 (or 12410 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 68552058672 in words is "sixty-eight billion, five hundred fifty-two million, fifty-eight thousand, six hundred seventy-two".