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68048439 = 337613049
BaseRepresentation
bin1000000111001…
…01011000110111
311202001012220120
410003211120313
5114410022224
610430303023
71454254644
oct403453067
9152035816
1068048439
1135458888
121a957a73
1311137464
149074dcb
155e92779
hex40e5637

68048439 has 8 divisors (see below), whose sum is σ = 93183600. Its totient is φ = 44139456.

The previous prime is 68048437. The next prime is 68048509. The reversal of 68048439 is 93484086.

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

It is not a de Polignac number, because 68048439 - 21 = 68048437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68048439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68048437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306414 + ... + 306635.

It is an arithmetic number, because the mean of its divisors is an integer number (11647950).

Almost surely, 268048439 is an apocalyptic number.

68048439 is a deficient number, since it is larger than the sum of its proper divisors (25135161).

68048439 is a wasteful number, since it uses less digits than its factorization.

68048439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613089.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 68048439 is about 8249.1477741643. The cubic root of 68048439 is about 408.2624044880.

The spelling of 68048439 in words is "sixty-eight million, forty-eight thousand, four hundred thirty-nine".

Divisors: 1 3 37 111 613049 1839147 22682813 68048439