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68798493 = 327996763
BaseRepresentation
bin1000001100111…
…00100000011101
311210110022210100
410012130200131
5120103022433
610454331313
71463530461
oct406344035
9153408710
1068798493
1135920365
121b059b39
131133a98a
1491cc4a1
15608eb13
hex419c81d

68798493 has 12 divisors (see below), whose sum is σ = 100634560. Its totient is φ = 45284616.

The previous prime is 68798491. The next prime is 68798519. The reversal of 68798493 is 39489786.

68798493 is a `hidden beast` number, since 68 + 7 + 98 + 493 = 666.

It is not a de Polignac number, because 68798493 - 21 = 68798491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68798491) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 47671 + ... + 49092.

Almost surely, 268798493 is an apocalyptic number.

It is an amenable number.

68798493 is a deficient number, since it is larger than the sum of its proper divisors (31836067).

68798493 is a wasteful number, since it uses less digits than its factorization.

68798493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96848 (or 96845 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 68798493 is about 8294.4856983420. The cubic root of 68798493 is about 409.7569310785.

The spelling of 68798493 in words is "sixty-eight million, seven hundred ninety-eight thousand, four hundred ninety-three".

Divisors: 1 3 9 79 237 711 96763 290289 870867 7644277 22932831 68798493