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68322525 = 3527312479
BaseRepresentation
bin1000001001010…
…00010011011101
311202120010212220
410010220103131
5114442310100
610440215553
71456506015
oct404502335
9152503786
1068322525
11356257a7
121aa6a5b9
131120213b
149106c45
155ee8aa0
hex41284dd

68322525 has 24 divisors (see below), whose sum is σ = 114516480. Its totient is φ = 35936640.

The previous prime is 68322511. The next prime is 68322547. The reversal of 68322525 is 52522386.

It is not a de Polignac number, because 68322525 - 25 = 68322493 is a prime.

It is a super-3 number, since 3×683225253 (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 765 + ... + 11714.

It is an arithmetic number, because the mean of its divisors is an integer number (4771520).

Almost surely, 268322525 is an apocalyptic number.

It is an amenable number.

68322525 is a deficient number, since it is larger than the sum of its proper divisors (46193955).

68322525 is a wasteful number, since it uses less digits than its factorization.

68322525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12565 (or 12560 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 68322525 is about 8265.7440681405. The cubic root of 68322525 is about 408.8098043031.

The spelling of 68322525 in words is "sixty-eight million, three hundred twenty-two thousand, five hundred twenty-five".

Divisors: 1 3 5 15 25 73 75 219 365 1095 1825 5475 12479 37437 62395 187185 311975 910967 935925 2732901 4554835 13664505 22774175 68322525