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68419349 = 179382231
BaseRepresentation
bin1000001001111…
…11111100010101
311202202001200222
410010333330111
5120003404344
610442244125
71460361215
oct404777425
9152661628
1068419349
1135691519
121aab6645
131123722b
149130245
1560175ee
hex413ff15

68419349 has 4 divisors (see below), whose sum is σ = 68801760. Its totient is φ = 68036940.

The previous prime is 68419313. The next prime is 68419367. The reversal of 68419349 is 94391486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68419349 - 28 = 68419093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68419249) 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, 190937 + ... + 191294.

It is an arithmetic number, because the mean of its divisors is an integer number (17200440).

Almost surely, 268419349 is an apocalyptic number.

It is an amenable number.

68419349 is a deficient number, since it is larger than the sum of its proper divisors (382411).

68419349 is a wasteful number, since it uses less digits than its factorization.

68419349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382410.

The product of its digits is 186624, while the sum is 44.

The square root of 68419349 is about 8271.5989385366. The cubic root of 68419349 is about 409.0028295506.

The spelling of 68419349 in words is "sixty-eight million, four hundred nineteen thousand, three hundred forty-nine".

Divisors: 1 179 382231 68419349