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283228 = 221141157
BaseRepresentation
bin1000101001001011100
3112101111221
41011021130
533030403
610023124
72256511
oct1051134
9471457
10283228
11183880
12117aa4
139bbba
1475308
1558dbd
hex4525c

283228 has 24 divisors (see below), whose sum is σ = 557424. Its totient is φ = 124800.

The previous prime is 283211. The next prime is 283267. The reversal of 283228 is 822382.

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, 1726 + ... + 1882.

It is an arithmetic number, because the mean of its divisors is an integer number (23226).

2283228 is an apocalyptic number.

It is an amenable number.

283228 is a deficient number, since it is larger than the sum of its proper divisors (274196).

283228 is a wasteful number, since it uses less digits than its factorization.

283228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 211 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 283228 is about 532.1916947868. The cubic root of 283228 is about 65.6717710423.

It can be divided in two parts, 28322 and 8, that multiplied together give a square (226576 = 4762).

The spelling of 283228 in words is "two hundred eighty-three thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 22 41 44 82 157 164 314 451 628 902 1727 1804 3454 6437 6908 12874 25748 70807 141614 283228