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68817382 = 234408691
BaseRepresentation
bin1000001101000…
…01000111100110
311210111021200221
410012201013212
5120104124012
610454554554
71463636524
oct406410746
9153437627
1068817382
1135933577
121b068a5a
131134645a
1491d5314
156095507
hex41a11e6

68817382 has 4 divisors (see below), whose sum is σ = 103226076. Its totient is φ = 34408690.

The previous prime is 68817379. The next prime is 68817401. The reversal of 68817382 is 28371886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17204344 + ... + 17204347.

It is an arithmetic number, because the mean of its divisors is an integer number (25806519).

Almost surely, 268817382 is an apocalyptic number.

68817382 is a deficient number, since it is larger than the sum of its proper divisors (34408694).

68817382 is a wasteful number, since it uses less digits than its factorization.

68817382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34408693.

The product of its digits is 129024, while the sum is 43.

The square root of 68817382 is about 8295.6242682513. The cubic root of 68817382 is about 409.7944279775.

The spelling of 68817382 in words is "sixty-eight million, eight hundred seventeen thousand, three hundred eighty-two".

Divisors: 1 2 34408691 68817382