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285916361 = 7110339097
BaseRepresentation
bin10001000010101…
…011110011001001
3201221000001111212
4101002223303021
51041143310421
644212102505
710041151253
oct2102536311
9657001455
10285916361
11137435215
127b904a35
13473095a3
1429d88cd3
151a17ae5b
hex110abcc9

285916361 has 8 divisors (see below), whose sum is σ = 292765824. Its totient is φ = 279145440.

The previous prime is 285916321. The next prime is 285916373. The reversal of 285916361 is 163619582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 285916361 - 222 = 281722057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285916321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12236 + ... + 26861.

It is an arithmetic number, because the mean of its divisors is an integer number (36595728).

Almost surely, 2285916361 is an apocalyptic number.

It is an amenable number.

285916361 is a deficient number, since it is larger than the sum of its proper divisors (6849463).

285916361 is a wasteful number, since it uses less digits than its factorization.

285916361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39271.

The product of its digits is 77760, while the sum is 41.

The square root of 285916361 is about 16909.0615055952. The cubic root of 285916361 is about 658.7889952876.

The spelling of 285916361 in words is "two hundred eighty-five million, nine hundred sixteen thousand, three hundred sixty-one".

Divisors: 1 71 103 7313 39097 2775887 4026991 285916361