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68795264 = 272292347
BaseRepresentation
bin1000001100110…
…11101110000000
311210110011100202
410012123232000
5120102422024
610454304332
71463515166
oct406335600
9153404322
1068795264
113591899a
121b0580a8
1311339375
1491cb236
15608dbae
hex419bb80

68795264 has 32 divisors (see below), whose sum is σ = 137710200. Its totient is φ = 34232832.

The previous prime is 68795203. The next prime is 68795267. The reversal of 68795264 is 46259786.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68795267) 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, 28139 + ... + 30485.

Almost surely, 268795264 is an apocalyptic number.

68795264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68795264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68855100).

68795264 is an abundant number, since it is smaller than the sum of its proper divisors (68914936).

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

68795264 is a wasteful number, since it uses less digits than its factorization.

68795264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590 (or 2578 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 68795264 is about 8294.2910486671. The cubic root of 68795264 is about 409.7505204447.

The spelling of 68795264 in words is "sixty-eight million, seven hundred ninety-five thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 128 229 458 916 1832 2347 3664 4694 7328 9388 14656 18776 29312 37552 75104 150208 300416 537463 1074926 2149852 4299704 8599408 17198816 34397632 68795264