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68632584 = 23311325307
BaseRepresentation
bin1000001011101…
…00000000001000
311210010220012120
410011310000020
5120032220314
610451011240
71462236666
oct405640010
9153126176
1068632584
1135817749
121ab99b20
13112b02c7
149187c36
15605a8a9
hex4174008

68632584 has 32 divisors (see below), whose sum is σ = 173106720. Its totient is φ = 22674176.

The previous prime is 68632583. The next prime is 68632591. The reversal of 68632584 is 48523686.

It is not an unprimeable number, because it can be changed into a prime (68632583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9942 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (5409585).

Almost surely, 268632584 is an apocalyptic number.

It is an amenable number.

68632584 is an abundant number, since it is smaller than the sum of its proper divisors (104474136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68632584 is a wasteful number, since it uses less digits than its factorization.

68632584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25429 (or 25425 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 68632584 is about 8284.4784989763. The cubic root of 68632584 is about 409.4272868281.

The spelling of 68632584 in words is "sixty-eight million, six hundred thirty-two thousand, five hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 113 226 339 452 678 904 1356 2712 25307 50614 75921 101228 151842 202456 303684 607368 2859691 5719382 8579073 11438764 17158146 22877528 34316292 68632584