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42672385 = 5721989103
BaseRepresentation
bin1010001011001…
…0000100000001
32222021222111201
42202302010001
541411004020
64122341201
71025465200
oct242620401
988258451
1042672385
11220a6438
121235a801
138ac1042
14594b237
153b2da0a
hex28b2101

42672385 has 48 divisors (see below), whose sum is σ = 64022400. Its totient is φ = 27143424.

The previous prime is 42672361. The next prime is 42672389. The reversal of 42672385 is 58327624.

It is not a de Polignac number, because 42672385 - 27 = 42672257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 414244 + ... + 414346.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 242672385 is an apocalyptic number.

It is an amenable number.

42672385 is a deficient number, since it is larger than the sum of its proper divisors (21350015).

42672385 is a wasteful number, since it uses less digits than its factorization.

42672385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 223 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 42672385 is about 6532.4103514706. The cubic root of 42672385 is about 349.4477958981.

The spelling of 42672385 in words is "forty-two million, six hundred seventy-two thousand, three hundred eighty-five".

Divisors: 1 5 7 19 35 49 89 95 103 133 245 445 515 623 665 721 931 1691 1957 3115 3605 4361 4655 5047 8455 9167 9785 11837 13699 21805 25235 45835 59185 64169 68495 82859 95893 174173 320845 414295 449183 479465 870865 1219211 2245915 6096055 8534477 42672385