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68088747 = 331771597
BaseRepresentation
bin1000000111011…
…11001110101011
311202010021012110
410003233032223
5114412314442
610431213403
71454513316
oct403571653
9152107173
1068088747
11354860a1
121a977263
131114c8cc
14908597d
155e9e69c
hex40ef3ab

68088747 has 8 divisors (see below), whose sum is σ = 91072656. Its totient is φ = 45248672.

The previous prime is 68088743. The next prime is 68088793. The reversal of 68088747 is 74788086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68088747 - 22 = 68088743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68088696 and 68088705.

It is not an unprimeable number, because it can be changed into a prime (68088743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34848 + ... + 36749.

It is an arithmetic number, because the mean of its divisors is an integer number (11384082).

Almost surely, 268088747 is an apocalyptic number.

68088747 is a deficient number, since it is larger than the sum of its proper divisors (22983909).

68088747 is a wasteful number, since it uses less digits than its factorization.

68088747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71917.

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 68088747 is about 8251.5905739439. The cubic root of 68088747 is about 408.3429990030.

The spelling of 68088747 in words is "sixty-eight million, eighty-eight thousand, seven hundred forty-seven".

Divisors: 1 3 317 951 71597 214791 22696249 68088747