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42503930 = 257607199
BaseRepresentation
bin1010001000100…
…0111011111010
32221222102102122
42202020323322
541340111210
64115001242
71024164110
oct242107372
987872378
1042503930
1121aa0917
1212299222
138a62471
145905ab0
153ae8b55
hex2888efa

42503930 has 16 divisors (see below), whose sum is σ = 87436800. Its totient is φ = 14572752.

The previous prime is 42503897. The next prime is 42503939. The reversal of 42503930 is 3930524.

42503930 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 42503930.

It is not an unprimeable number, because it can be changed into a prime (42503939) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 303530 + ... + 303669.

It is an arithmetic number, because the mean of its divisors is an integer number (5464800).

Almost surely, 242503930 is an apocalyptic number.

42503930 is an abundant number, since it is smaller than the sum of its proper divisors (44932870).

42503930 is a wasteful number, since it uses less digits than its factorization.

42503930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607213.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 42503930 is about 6519.5038154755. The cubic root of 42503930 is about 348.9873587045.

The spelling of 42503930 in words is "forty-two million, five hundred three thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 607199 1214398 3035995 4250393 6071990 8500786 21251965 42503930