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42512764 = 2271518313
BaseRepresentation
bin1010001000101…
…1000101111100
32221222212112211
42202023011330
541340402024
64115110204
71024231630
oct242130574
987885484
1042512764
1121aa7518
12122a2364
138a664a8
145908dc0
153aeb594
hex288b17c

42512764 has 12 divisors (see below), whose sum is σ = 85025584. Its totient is φ = 18219744.

The previous prime is 42512761. The next prime is 42512803. The reversal of 42512764 is 46721524.

42512764 is an admirable number.

It is a hoax number, since the sum of its digits (31) 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 (42512761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759129 + ... + 759184.

Almost surely, 242512764 is an apocalyptic number.

It is an amenable number.

42512764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42512764 is a wasteful number, since it uses less digits than its factorization.

42512764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518324 (or 1518322 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 42512764 is about 6520.1812858233. The cubic root of 42512764 is about 349.0115348278.

The spelling of 42512764 in words is "forty-two million, five hundred twelve thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 14 28 1518313 3036626 6073252 10628191 21256382 42512764