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68758384 = 245381083
BaseRepresentation
bin1000001100100…
…10101101110000
311210101021202211
410012102231300
5120100232014
610453421504
71463302522
oct406225560
9153337684
1068758384
11358a3212
121b03a894
1311325646
1491bba12
156082cc4
hex4192b70

68758384 has 20 divisors (see below), whose sum is σ = 135734616. Its totient is φ = 33730112.

The previous prime is 68758381. The next prime is 68758411. The reversal of 68758384 is 48385786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68758381) 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 3 ways as a sum of consecutive naturals, for example, 39694 + ... + 41389.

Almost surely, 268758384 is an apocalyptic number.

It is an amenable number.

68758384 is a deficient number, since it is larger than the sum of its proper divisors (66976232).

68758384 is a wasteful number, since it uses less digits than its factorization.

68758384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81144 (or 81138 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 68758384 is about 8292.0675346984. The cubic root of 68758384 is about 409.6772872041.

The spelling of 68758384 in words is "sixty-eight million, seven hundred fifty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 53 106 212 424 848 81083 162166 324332 648664 1297328 4297399 8594798 17189596 34379192 68758384