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42672357 = 3271352103
BaseRepresentation
bin1010001011001…
…0000011100101
32222021222110200
42202302003211
541411003412
64122341113
71025465130
oct242620345
988258420
1042672357
11220a6412
121235a799
138ac1020
14594b217
153b2d9dc
hex28b20e5

42672357 has 24 divisors (see below), whose sum is σ = 75863424. Its totient is φ = 22508064.

The previous prime is 42672317. The next prime is 42672361. The reversal of 42672357 is 75327624.

It is a happy number.

It is not a de Polignac number, because 42672357 - 26 = 42672293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25233 + ... + 26870.

It is an arithmetic number, because the mean of its divisors is an integer number (3160976).

Almost surely, 242672357 is an apocalyptic number.

It is an amenable number.

42672357 is a deficient number, since it is larger than the sum of its proper divisors (33191067).

42672357 is a wasteful number, since it uses less digits than its factorization.

42672357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52129 (or 52126 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 42672357 is about 6532.4082083103. The cubic root of 42672357 is about 349.4477194666.

The spelling of 42672357 in words is "forty-two million, six hundred seventy-two thousand, three hundred fifty-seven".

Divisors: 1 3 7 9 13 21 39 63 91 117 273 819 52103 156309 364721 468927 677339 1094163 2032017 3282489 4741373 6096051 14224119 42672357