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68192303 = 581311731
BaseRepresentation
bin1000001000010…
…00100000101111
311202022112020212
410010020200233
5114424123203
610433333035
71455424244
oct404104057
9152275225
1068192303
1135546983
121aa0717b
1311187a9a
1490b15cb
155ec01d8
hex410882f

68192303 has 4 divisors (see below), whose sum is σ = 68209848. Its totient is φ = 68174760.

The previous prime is 68192297. The next prime is 68192323. The reversal of 68192303 is 30329186.

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

It is a cyclic number.

It is not a de Polignac number, because 68192303 - 216 = 68126767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68192303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68192323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 11678.

It is an arithmetic number, because the mean of its divisors is an integer number (17052462).

Almost surely, 268192303 is an apocalyptic number.

68192303 is a deficient number, since it is larger than the sum of its proper divisors (17545).

68192303 is a wasteful number, since it uses less digits than its factorization.

68192303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17544.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 68192303 is about 8257.8631013114. The cubic root of 68192303 is about 408.5499100802.

The spelling of 68192303 in words is "sixty-eight million, one hundred ninety-two thousand, three hundred three".

Divisors: 1 5813 11731 68192303