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42485078 = 221242539
BaseRepresentation
bin1010001000010…
…0010101010110
32221221110120102
42202010111112
541334010303
64114334102
71024055126
oct242042526
987843512
1042485078
1121a88739
121228a332
138a569cc
1458dcc86
153ae3288
hex2884556

42485078 has 4 divisors (see below), whose sum is σ = 63727620. Its totient is φ = 21242538.

The previous prime is 42485063. The next prime is 42485081. The reversal of 42485078 is 87058424.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10621268 + ... + 10621271.

It is an arithmetic number, because the mean of its divisors is an integer number (15931905).

Almost surely, 242485078 is an apocalyptic number.

42485078 is a deficient number, since it is larger than the sum of its proper divisors (21242542).

42485078 is a wasteful number, since it uses less digits than its factorization.

42485078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242541.

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

The square root of 42485078 is about 6518.0578395715. The cubic root of 42485078 is about 348.9357549852.

The spelling of 42485078 in words is "forty-two million, four hundred eighty-five thousand, seventy-eight".

Divisors: 1 2 21242539 42485078