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68529344 = 2613312657
BaseRepresentation
bin1000001010110…
…10110011000000
311202221122120212
410011122303000
5120020414334
610444453252
71461330002
oct405326300
9152848525
1068529344
1135757124
121ab4a228
1311275310
14915c372
156039ece
hex415acc0

68529344 has 56 divisors (see below), whose sum is σ = 151229568. Its totient is φ = 30597120.

The previous prime is 68529343. The next prime is 68529347. The reversal of 68529344 is 44392586.

It is not an unprimeable number, because it can be changed into a prime (68529341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24464 + ... + 27120.

It is an arithmetic number, because the mean of its divisors is an integer number (2700528).

Almost surely, 268529344 is an apocalyptic number.

68529344 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 68529344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75614784).

68529344 is an abundant number, since it is smaller than the sum of its proper divisors (82700224).

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

68529344 is a wasteful number, since it uses less digits than its factorization.

68529344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2703 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 68529344 is about 8278.2452246838. The cubic root of 68529344 is about 409.2218912625.

The spelling of 68529344 in words is "sixty-eight million, five hundred twenty-nine thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 16 26 31 32 52 62 64 104 124 208 248 403 416 496 806 832 992 1612 1984 2657 3224 5314 6448 10628 12896 21256 25792 34541 42512 69082 82367 85024 138164 164734 170048 276328 329468 552656 658936 1070771 1105312 1317872 2141542 2210624 2635744 4283084 5271488 8566168 17132336 34264672 68529344