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68529798 = 23259173373
BaseRepresentation
bin1000001010110…
…10111010000110
311202221200012200
410011122322012
5120020423143
610444455330
71461331221
oct405327206
9152850180
1068529798
11357574a7
121ab4a546
131127559c
14915c5b8
15603a1d3
hex415ae86

68529798 has 48 divisors (see below), whose sum is σ = 152277840. Its totient is φ = 22266432.

The previous prime is 68529787. The next prime is 68529803. The reversal of 68529798 is 89792586.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183540 + ... + 183912.

It is an arithmetic number, because the mean of its divisors is an integer number (3172455).

Almost surely, 268529798 is an apocalyptic number.

68529798 is an abundant number, since it is smaller than the sum of its proper divisors (83748042).

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

68529798 is a wasteful number, since it uses less digits than its factorization.

68529798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 610 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 68529798 is about 8278.2726459087. The cubic root of 68529798 is about 409.2227949451. Note that the first 3 decimals are identical.

The spelling of 68529798 in words is "sixty-eight million, five hundred twenty-nine thousand, seven hundred ninety-eight".

Divisors: 1 2 3 6 9 18 59 118 173 177 346 354 373 519 531 746 1038 1062 1119 1557 2238 3114 3357 6714 10207 20414 22007 30621 44014 61242 64529 66021 91863 129058 132042 183726 193587 198063 387174 396126 580761 1161522 3807211 7614422 11421633 22843266 34264899 68529798