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42519423 = 329488729
BaseRepresentation
bin1010001000110…
…0101101111111
32222000012200110
42202030231333
541341110143
64115201103
71024260222
oct242145577
988005613
1042519423
1122001521
12122a6193
138a6952b
14590b5b9
153aed533
hex288cb7f

42519423 has 8 divisors (see below), whose sum is σ = 58647600. Its totient is φ = 27368768.

The previous prime is 42519403. The next prime is 42519427. The reversal of 42519423 is 32491524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42519423 - 25 = 42519391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42519427) 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, 244278 + ... + 244451.

It is an arithmetic number, because the mean of its divisors is an integer number (7330950).

Almost surely, 242519423 is an apocalyptic number.

42519423 is a deficient number, since it is larger than the sum of its proper divisors (16128177).

42519423 is a wasteful number, since it uses less digits than its factorization.

42519423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488761.

The product of its digits is 8640, while the sum is 30.

The square root of 42519423 is about 6520.6919111395. The cubic root of 42519423 is about 349.0297563866.

The spelling of 42519423 in words is "forty-two million, five hundred nineteen thousand, four hundred twenty-three".

Divisors: 1 3 29 87 488729 1466187 14173141 42519423