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42800864 = 251337527
BaseRepresentation
bin1010001101000…
…1011011100000
32222112111202012
42203101123200
541424111424
64125212052
71026541601
oct243213340
988474665
1042800864
1122183a17
1212401028
138b37672
145981da8
153b56b0e
hex28d16e0

42800864 has 12 divisors (see below), whose sum is σ = 84264264. Its totient is φ = 21400416.

The previous prime is 42800851. The next prime is 42800881. The reversal of 42800864 is 46800824.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1337527 = 42800864 / (4 + 2 + 8 + 0 + 0 + 8 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 42800864.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 668732 + ... + 668795.

It is an arithmetic number, because the mean of its divisors is an integer number (7022022).

Almost surely, 242800864 is an apocalyptic number.

It is an amenable number.

42800864 is a deficient number, since it is larger than the sum of its proper divisors (41463400).

42800864 is a wasteful number, since it uses less digits than its factorization.

42800864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337537 (or 1337529 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 42800864 is about 6542.2369263120. The cubic root of 42800864 is about 349.7981530038.

The spelling of 42800864 in words is "forty-two million, eight hundred thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 1337527 2675054 5350108 10700216 21400432 42800864