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285096916 = 22132421741
BaseRepresentation
bin10000111111100…
…011101111010100
3201212110102110001
4100333203233110
51040441100131
644142341044
710031166226
oct2077435724
9655412401
10285096916
11136a25595
127b58a784
13470b0600
1429c14416
151a068261
hex10fe3bd4

285096916 has 18 divisors (see below), whose sum is σ = 540251502. Its totient is φ = 131582880.

The previous prime is 285096913. The next prime is 285096967. The reversal of 285096916 is 619690582.

It can be written as a sum of positive squares in 3 ways, for example, as 2722500 + 282374416 = 1650^2 + 16804^2 .

It is a super-2 number, since 2×2850969162 = 162560503025422112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285096913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210195 + ... + 211546.

Almost surely, 2285096916 is an apocalyptic number.

285096916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

285096916 is a deficient number, since it is larger than the sum of its proper divisors (255154586).

285096916 is a wasteful number, since it uses less digits than its factorization.

285096916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421771 (or 421756 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 285096916 is about 16884.8131763428. The cubic root of 285096916 is about 658.1590232881.

The spelling of 285096916 in words is "two hundred eighty-five million, ninety-six thousand, nine hundred sixteen".

Divisors: 1 2 4 13 26 52 169 338 676 421741 843482 1686964 5482633 10965266 21930532 71274229 142548458 285096916