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42918246 = 23271033307
BaseRepresentation
bin1010001110111…
…0000101100110
32222202110202200
42203232011212
541441340441
64131515330
71030541040
oct243560546
988673680
1042918246
1122254128
1212458b46
138b78c17
1459b2a90
153b7b7b6
hex28ee166

42918246 has 48 divisors (see below), whose sum is σ = 107337984. Its totient is φ = 12139632.

The previous prime is 42918199. The next prime is 42918263. The reversal of 42918246 is 64281924.

42918246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42918246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11325 + ... + 14631.

It is an arithmetic number, because the mean of its divisors is an integer number (2236208).

Almost surely, 242918246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42918246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53668992).

42918246 is an abundant number, since it is smaller than the sum of its proper divisors (64419738).

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

42918246 is a wasteful number, since it uses less digits than its factorization.

42918246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425 (or 3422 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 42918246 is about 6551.2018744655. The cubic root of 42918246 is about 350.1176366478.

The spelling of 42918246 in words is "forty-two million, nine hundred eighteen thousand, two hundred forty-six".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 103 126 206 309 618 721 927 1442 1854 2163 3307 4326 6489 6614 9921 12978 19842 23149 29763 46298 59526 69447 138894 208341 340621 416682 681242 1021863 2043726 2384347 3065589 4768694 6131178 7153041 14306082 21459123 42918246