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42458836 = 2278211847
BaseRepresentation
bin1010000111110…
…1111011010100
32221220010120111
42201331323110
541332140321
64114012404
71023615460
oct241757324
987803514
1042458836
1121a6aa52
1212277104
138a47a94
1458d34a0
153ada5e1
hex287ded4

42458836 has 24 divisors (see below), whose sum is σ = 85067136. Its totient is φ = 18164640.

The previous prime is 42458833. The next prime is 42458849. The reversal of 42458836 is 63885424.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42458831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22065 + ... + 23911.

It is an arithmetic number, because the mean of its divisors is an integer number (3544464).

Almost surely, 242458836 is an apocalyptic number.

It is an amenable number.

42458836 is an abundant number, since it is smaller than the sum of its proper divisors (42608300).

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

42458836 is a wasteful number, since it uses less digits than its factorization.

42458836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 2677 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 42458836 is about 6516.0445056798. The cubic root of 42458836 is about 348.8638971434.

The spelling of 42458836 in words is "forty-two million, four hundred fifty-eight thousand, eight hundred thirty-six".

Divisors: 1 2 4 7 14 28 821 1642 1847 3284 3694 5747 7388 11494 12929 22988 25858 51716 1516387 3032774 6065548 10614709 21229418 42458836