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42428470 = 257606121
BaseRepresentation
bin1010000111011…
…0100000110110
32221211120220211
42201312200312
541330202340
64113220034
71023431110
oct241664066
987746824
1042428470
1121a4a157
121226161a
138a37006
1458c63b0
153ad15ea
hex2876836

42428470 has 16 divisors (see below), whose sum is σ = 87281568. Its totient is φ = 14546880.

The previous prime is 42428467. The next prime is 42428483. The reversal of 42428470 is 7482424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302991 + ... + 303130.

It is an arithmetic number, because the mean of its divisors is an integer number (5455098).

Almost surely, 242428470 is an apocalyptic number.

42428470 is an abundant number, since it is smaller than the sum of its proper divisors (44853098).

42428470 is a wasteful number, since it uses less digits than its factorization.

42428470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606135.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 42428470 is about 6513.7139943353. The cubic root of 42428470 is about 348.7807096881.

The spelling of 42428470 in words is "forty-two million, four hundred twenty-eight thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 606121 1212242 3030605 4242847 6061210 8485694 21214235 42428470