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42805302 = 237397729
BaseRepresentation
bin1010001101001…
…0100000110110
32222112201211120
42203102200312
541424232202
64125244410
71026560541
oct243224066
988481746
1042805302
1122187291
1212403706
138b396a7
145983858
153b580bc
hex28d2836

42805302 has 16 divisors (see below), whose sum is σ = 86784240. Its totient is φ = 14072832.

The previous prime is 42805283. The next prime is 42805313. The reversal of 42805302 is 20350824.

It is a super-2 number, since 2×428053022 = 3664587758622408, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 48427 + ... + 49302.

It is an arithmetic number, because the mean of its divisors is an integer number (5424015).

Almost surely, 242805302 is an apocalyptic number.

42805302 is an abundant number, since it is smaller than the sum of its proper divisors (43978938).

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

42805302 is a wasteful number, since it uses less digits than its factorization.

42805302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97807.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 42805302 is about 6542.5760981436. The cubic root of 42805302 is about 349.8102427173.

The spelling of 42805302 in words is "forty-two million, eight hundred five thousand, three hundred two".

Divisors: 1 2 3 6 73 146 219 438 97729 195458 293187 586374 7134217 14268434 21402651 42805302