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285227348 = 22713177761
BaseRepresentation
bin10001000000000…
…011100101010100
3201212201001100212
4101000003211110
51041004233343
644145224552
710032251420
oct2100034524
9655631325
10285227348
1113700458a
127b632158
1347127aa3
1429c49b80
151a091c18
hex11003954

285227348 has 24 divisors (see below), whose sum is σ = 574816704. Its totient is φ = 121305600.

The previous prime is 285227321. The next prime is 285227351. The reversal of 285227348 is 843722582.

It is a happy number.

285227348 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2852273482 = 162709280094226208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35213 + ... + 42548.

It is an arithmetic number, because the mean of its divisors is an integer number (23950696).

Almost surely, 2285227348 is an apocalyptic number.

285227348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285227348 is an abundant number, since it is smaller than the sum of its proper divisors (289589356).

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

285227348 is a wasteful number, since it uses less digits than its factorization.

285227348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77903 (or 77901 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 285227348 is about 16888.6751404602. The cubic root of 285227348 is about 658.2593773605.

The spelling of 285227348 in words is "two hundred eighty-five million, two hundred twenty-seven thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 28 131 262 524 917 1834 3668 77761 155522 311044 544327 1088654 2177308 10186691 20373382 40746764 71306837 142613674 285227348