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68504386 = 2191979151
BaseRepresentation
bin1000001010101…
…00101101000010
311202220101100111
410011110231002
5120014120021
610444141534
71461164146
oct405245502
9152811314
1068504386
113573a3a5
121ab378aa
1311266b52
149153226
1560328e1
hex4154b42

68504386 has 16 divisors (see below), whose sum is σ = 108725760. Its totient is φ = 32281200.

The previous prime is 68504377. The next prime is 68504417. The reversal of 68504386 is 68340586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911 + ... + 12061.

It is an arithmetic number, because the mean of its divisors is an integer number (6795360).

Almost surely, 268504386 is an apocalyptic number.

68504386 is a deficient number, since it is larger than the sum of its proper divisors (40221374).

68504386 is a wasteful number, since it uses less digits than its factorization.

68504386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68504386 is about 8276.7376423323. The cubic root of 68504386 is about 409.1722064632.

It can be divided in two parts, 6850 and 4386, that added together give a square (11236 = 1062).

The spelling of 68504386 in words is "sixty-eight million, five hundred four thousand, three hundred eighty-six".

Divisors: 1 2 19 38 197 394 3743 7486 9151 18302 173869 347738 1802747 3605494 34252193 68504386