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68528496 = 24317137613
BaseRepresentation
bin1000001010110…
…10100101110000
311202221121102110
410011122211300
5120020402441
610444445320
71461324351
oct405324560
9152847373
1068528496
1135756523
121ab49840
1311274b0a
14915bd28
156039b16
hex415a970

68528496 has 80 divisors (see below), whose sum is σ = 189121824. Its totient is φ = 21307392.

The previous prime is 68528489. The next prime is 68528501. The reversal of 68528496 is 69482586.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 111486 + ... + 112098.

Almost surely, 268528496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68528496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94560912).

68528496 is an abundant number, since it is smaller than the sum of its proper divisors (120593328).

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

68528496 is a wasteful number, since it uses less digits than its factorization.

68528496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 772 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 68528496 is about 8278.1940059412. The cubic root of 68528496 is about 409.2202033160.

The spelling of 68528496 in words is "sixty-eight million, five hundred twenty-eight thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 137 204 272 274 408 411 548 613 816 822 1096 1226 1644 1839 2192 2329 2452 3288 3678 4658 4904 6576 6987 7356 9316 9808 10421 13974 14712 18632 20842 27948 29424 31263 37264 41684 55896 62526 83368 83981 111792 125052 166736 167962 250104 251943 335924 500208 503886 671848 1007772 1343696 1427677 2015544 2855354 4031088 4283031 5710708 8566062 11421416 17132124 22842832 34264248 68528496