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42678351 = 3219318397
BaseRepresentation
bin1010001011001…
…1100001001111
32222022021200200
42202303201033
541411201401
64122424543
71025521452
oct242634117
988267620
1042678351
11220aa971
1212362153
138ac3981
14594d499
153b30686
hex28b384f

42678351 has 48 divisors (see below), whose sum is σ = 68490240. Its totient is φ = 25505280.

The previous prime is 42678331. The next prime is 42678373. The reversal of 42678351 is 15387624.

42678351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42678351 - 25 = 42678319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42678301) 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 47 ways as a sum of consecutive naturals, for example, 439935 + ... + 440031.

It is an arithmetic number, because the mean of its divisors is an integer number (1426880).

Almost surely, 242678351 is an apocalyptic number.

42678351 is a deficient number, since it is larger than the sum of its proper divisors (25811889).

42678351 is a wasteful number, since it uses less digits than its factorization.

42678351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 233 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42678351 is about 6532.8669816551. The cubic root of 42678351 is about 349.4640804999.

The spelling of 42678351 in words is "forty-two million, six hundred seventy-eight thousand, three hundred fifty-one".

Divisors: 1 3 9 19 31 57 83 93 97 171 249 279 291 589 747 873 1577 1767 1843 2573 3007 4731 5301 5529 7719 8051 9021 14193 16587 23157 24153 27063 48887 57133 72459 146661 152969 171399 249581 439983 458907 514197 748743 1376721 2246229 4742039 14226117 42678351