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42431304 = 2333771673
BaseRepresentation
bin1010000111011…
…1001101001000
32221211201210210
42201313031020
541330300204
64113241120
71023442266
oct241671510
987751723
1042431304
1121a512a3
12122631a0
138a383a6
1458c7436
153ad2389
hex2877348

42431304 has 64 divisors (see below), whose sum is σ = 110643840. Its totient is φ = 13547520.

The previous prime is 42431273. The next prime is 42431317. The reversal of 42431304 is 40313424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62712 + ... + 63384.

It is an arithmetic number, because the mean of its divisors is an integer number (1728810).

Almost surely, 242431304 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 42431304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55321920).

42431304 is an abundant number, since it is smaller than the sum of its proper divisors (68212536).

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

42431304 is a wasteful number, since it uses less digits than its factorization.

42431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42431304 is about 6513.9315317249. The cubic root of 42431304 is about 348.7884750912.

Adding to 42431304 its reverse (40313424), we get a palindrome (82744728).

The spelling of 42431304 in words is "forty-two million, four hundred thirty-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 37 71 74 111 142 148 213 222 284 296 426 444 568 673 852 888 1346 1704 2019 2627 2692 4038 5254 5384 7881 8076 10508 15762 16152 21016 24901 31524 47783 49802 63048 74703 95566 99604 143349 149406 191132 199208 286698 298812 382264 573396 597624 1146792 1767971 3535942 5303913 7071884 10607826 14143768 21215652 42431304