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42752079 = 325389627
BaseRepresentation
bin1010001100010…
…1100001001111
32222110000211100
42203011201033
541421031304
64124154143
71026246426
oct243054117
988400740
1042752079
11221502a7
1212398953
138b1b3b6
14596c2bd
153b47439
hex28c584f

42752079 has 12 divisors (see below), whose sum is σ = 62918856. Its totient is φ = 27963312.

The previous prime is 42752063. The next prime is 42752111. The reversal of 42752079 is 97025724.

It is not a de Polignac number, because 42752079 - 24 = 42752063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42752779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44337 + ... + 45290.

It is an arithmetic number, because the mean of its divisors is an integer number (5243238).

Almost surely, 242752079 is an apocalyptic number.

42752079 is a deficient number, since it is larger than the sum of its proper divisors (20166777).

42752079 is a wasteful number, since it uses less digits than its factorization.

42752079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89686 (or 89683 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 42752079 is about 6538.5073984817. The cubic root of 42752079 is about 349.6652009322.

The spelling of 42752079 in words is "forty-two million, seven hundred fifty-two thousand, seventy-nine".

Divisors: 1 3 9 53 159 477 89627 268881 806643 4750231 14250693 42752079