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42678485 = 520274211
BaseRepresentation
bin1010001011001…
…1100011010101
32222022021212122
42202303203111
541411202420
64122425325
71025522033
oct242634325
988267778
1042678485
11220aaa83
1212362245
138ac3a55
14594d553
153b30725
hex28b38d5

42678485 has 8 divisors (see below), whose sum is σ = 51251616. Its totient is φ = 34117840.

The previous prime is 42678479. The next prime is 42678487. The reversal of 42678485 is 58487624.

42678485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42678485 - 214 = 42662101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42678487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8030 + ... + 12240.

It is an arithmetic number, because the mean of its divisors is an integer number (6406452).

Almost surely, 242678485 is an apocalyptic number.

It is an amenable number.

42678485 is a deficient number, since it is larger than the sum of its proper divisors (8573131).

42678485 is a wasteful number, since it uses less digits than its factorization.

42678485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243.

The product of its digits is 430080, while the sum is 44.

The square root of 42678485 is about 6532.8772374812. The cubic root of 42678485 is about 349.4644462446.

The spelling of 42678485 in words is "forty-two million, six hundred seventy-eight thousand, four hundred eighty-five".

Divisors: 1 5 2027 4211 10135 21055 8535697 42678485