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68176543 = 4371137163
BaseRepresentation
bin1000001000001…
…00101010011111
311202021201122011
410010010222133
5114423122133
610433132051
71455330301
oct404045237
9152251564
1068176543
1135536056
121a9ba027
1311180866
1490a9971
155eba6cd
hex4104a9f

68176543 has 16 divisors (see below), whose sum is σ = 71698176. Its totient is φ = 64774080.

The previous prime is 68176519. The next prime is 68176553. The reversal of 68176543 is 34567186.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68176543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68176496 and 68176505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68176553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418180 + ... + 418342.

It is an arithmetic number, because the mean of its divisors is an integer number (4481136).

Almost surely, 268176543 is an apocalyptic number.

68176543 is a deficient number, since it is larger than the sum of its proper divisors (3521633).

68176543 is a wasteful number, since it uses less digits than its factorization.

68176543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 120960, while the sum is 40.

The square root of 68176543 is about 8256.9088041470. The cubic root of 68176543 is about 408.5184341785.

The spelling of 68176543 in words is "sixty-eight million, one hundred seventy-six thousand, five hundred forty-three".

Divisors: 1 43 71 137 163 3053 5891 7009 9727 11573 22331 418261 497639 960233 1585501 68176543