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68055464 = 238506933
BaseRepresentation
bin1000000111001…
…11000110101000
311202001120112202
410003213012220
5114410233324
610430355332
71454314301
oct403470650
9152046482
1068055464
1135463094
121a95bb48
131113a709
1490777a8
155e948ae
hex40e71a8

68055464 has 8 divisors (see below), whose sum is σ = 127604010. Its totient is φ = 34027728.

The previous prime is 68055461. The next prime is 68055479. The reversal of 68055464 is 46455086.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 27478564 = 6370^2 + 5242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (68055461) 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 as a sum of consecutive naturals, namely, 4253459 + ... + 4253474.

Almost surely, 268055464 is an apocalyptic number.

It is an amenable number.

68055464 is a deficient number, since it is larger than the sum of its proper divisors (59548546).

68055464 is a wasteful number, since it uses less digits than its factorization.

68055464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8506939 (or 8506935 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 68055464 is about 8249.5735647365. The cubic root of 68055464 is about 408.2764530331.

The spelling of 68055464 in words is "sixty-eight million, fifty-five thousand, four hundred sixty-four".

Divisors: 1 2 4 8 8506933 17013866 34027732 68055464