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285364130 = 2552375449
BaseRepresentation
bin10001000000100…
…100111110100010
3201212221222222212
4101000210332202
51041023123010
644152202122
710033361252
oct2100447642
9655858885
10285364130
11137098327
127b699342
134717511c
1429c83962
151a0bc505
hex11024fa2

285364130 has 16 divisors (see below), whose sum is σ = 513847800. Its totient is φ = 114102912.

The previous prime is 285364129. The next prime is 285364133. The reversal of 285364130 is 31463582.

It can be written as a sum of positive squares in 4 ways, for example, as 221027689 + 64336441 = 14867^2 + 8021^2 .

It is not an unprimeable number, because it can be changed into a prime (285364133) 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 7 ways as a sum of consecutive naturals, for example, 49646 + ... + 55094.

Almost surely, 2285364130 is an apocalyptic number.

285364130 is a deficient number, since it is larger than the sum of its proper divisors (228483670).

285364130 is a wasteful number, since it uses less digits than its factorization.

285364130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10693.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 285364130 is about 16892.7241734422. The cubic root of 285364130 is about 658.3645842488.

The spelling of 285364130 in words is "two hundred eighty-five million, three hundred sixty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 5237 5449 10474 10898 26185 27245 52370 54490 28536413 57072826 142682065 285364130