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68323460 = 22537127727
BaseRepresentation
bin1000001001010…
…00100010000100
311202120012011112
410010220202010
5114442322320
610440224152
71456511522
oct404504204
9152505145
1068323460
1135626477
121aa6b058
13112026aa
149107312
155ee8ec5
hex4128884

68323460 has 48 divisors (see below), whose sum is σ = 148721664. Its totient is φ = 26345088.

The previous prime is 68323457. The next prime is 68323481. The reversal of 68323460 is 6432386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93617 + ... + 94343.

It is an arithmetic number, because the mean of its divisors is an integer number (3098368).

Almost surely, 268323460 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 68323460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74360832).

68323460 is an abundant number, since it is smaller than the sum of its proper divisors (80398204).

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

68323460 is a wasteful number, since it uses less digits than its factorization.

68323460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 68323460 is about 8265.8006266786. The cubic root of 68323460 is about 408.8116691611.

The spelling of 68323460 in words is "sixty-eight million, three hundred twenty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 37 74 127 148 185 254 370 508 635 727 740 1270 1454 2540 2908 3635 4699 7270 9398 14540 18796 23495 26899 46990 53798 92329 93980 107596 134495 184658 268990 369316 461645 537980 923290 1846580 3416173 6832346 13664692 17080865 34161730 68323460