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42428130 = 2352575503
BaseRepresentation
bin1010000111011…
…0011011100010
32221211120110020
42201312123202
541330200010
64113214310
71023430113
oct241663342
987746406
1042428130
1121a49978
1212261396
138a36b04
1458c620a
153ad1470
hex28766e2

42428130 has 32 divisors (see below), whose sum is σ = 102242304. Its totient is φ = 11268096.

The previous prime is 42428093. The next prime is 42428147. The reversal of 42428130 is 3182424.

42428130 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 42428130.

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 15 ways as a sum of consecutive naturals, for example, 4959 + ... + 10461.

It is an arithmetic number, because the mean of its divisors is an integer number (3195072).

Almost surely, 242428130 is an apocalyptic number.

42428130 is an abundant number, since it is smaller than the sum of its proper divisors (59814174).

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

42428130 is a wasteful number, since it uses less digits than its factorization.

42428130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 42428130 is about 6513.6878955013. The cubic root of 42428130 is about 348.7797780357.

The spelling of 42428130 in words is "forty-two million, four hundred twenty-eight thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 257 514 771 1285 1542 2570 3855 5503 7710 11006 16509 27515 33018 55030 82545 165090 1414271 2828542 4242813 7071355 8485626 14142710 21214065 42428130