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42870548 = 2271531091
BaseRepresentation
bin1010001110001…
…0011100010100
32222200001100002
42203202130110
541433324143
64130510432
71030252010
oct243423424
988601302
1042870548
1122221306
1212435418
138b602b6
14599d540
153b6c5b8
hex28e2714

42870548 has 12 divisors (see below), whose sum is σ = 85741152. Its totient is φ = 18373080.

The previous prime is 42870547. The next prime is 42870571. The reversal of 42870548 is 84507824.

42870548 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42870547) 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 3 ways as a sum of consecutive naturals, for example, 765518 + ... + 765573.

It is an arithmetic number, because the mean of its divisors is an integer number (7145096).

Almost surely, 242870548 is an apocalyptic number.

It is an amenable number.

42870548 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42870548 is a wasteful number, since it uses less digits than its factorization.

42870548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531102 (or 1531100 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 42870548 is about 6547.5604617292. The cubic root of 42870548 is about 349.9878852950.

The spelling of 42870548 in words is "forty-two million, eight hundred seventy thousand, five hundred forty-eight".

Divisors: 1 2 4 7 14 28 1531091 3062182 6124364 10717637 21435274 42870548