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42512888 = 2311587823
BaseRepresentation
bin1010001000101…
…1000111111000
32221222212201102
42202023013320
541340403023
64115110532
71024232165
oct242130770
987885642
1042512888
1121aa7620
12122a2448
138a66572
14590906c
153aeb628
hex288b1f8

42512888 has 32 divisors (see below), whose sum is σ = 87212160. Its totient is φ = 19267680.

The previous prime is 42512879. The next prime is 42512891. The reversal of 42512888 is 88821524.

It is a super-2 number, since 2×425128882 = 3614691292201088, which contains 22 as substring.

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, 51245 + ... + 52067.

It is an arithmetic number, because the mean of its divisors is an integer number (2725380).

Almost surely, 242512888 is an apocalyptic number.

It is an amenable number.

42512888 is an abundant number, since it is smaller than the sum of its proper divisors (44699272).

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

42512888 is a wasteful number, since it uses less digits than its factorization.

42512888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1423 counting only the distinct ones).

The product of its digits is 40960, while the sum is 38.

The square root of 42512888 is about 6520.1907947544. The cubic root of 42512888 is about 349.0118741564.

The spelling of 42512888 in words is "forty-two million, five hundred twelve thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 587 823 1174 1646 2348 3292 4696 6457 6584 9053 12914 18106 25828 36212 51656 72424 483101 966202 1932404 3864808 5314111 10628222 21256444 42512888