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284220482 = 2721321312
BaseRepresentation
bin10000111100001…
…101110001000010
3201210210220012112
4100330031301002
51040230023412
644111455322
710020556100
oct2074156102
9653726175
10284220482
11136487067
127b227542
1346b64700
1429a66c70
1519e43722
hex10f0dc42

284220482 has 54 divisors (see below), whose sum is σ = 541149849. Its totient is φ = 111580560.

The previous prime is 284220451. The next prime is 284220491. The reversal of 284220482 is 284022482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 243016921 + 41203561 = 15589^2 + 6419^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=11921.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2169557 + ... + 2169687.

Almost surely, 2284220482 is an apocalyptic number.

284220482 is a deficient number, since it is larger than the sum of its proper divisors (256929367).

284220482 is a wasteful number, since it uses less digits than its factorization.

284220482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 284220482 is about 16858.8398770497. The cubic root of 284220482 is about 657.4839019320.

Multiplying 284220482 by its sum of digits (32), we get a square (9095055424 = 953682).

The spelling of 284220482 in words is "two hundred eighty-four million, two hundred twenty thousand, four hundred eighty-two".

Divisors: 1 2 7 13 14 26 49 91 98 131 169 182 262 338 637 917 1183 1274 1703 1834 2366 3406 6419 8281 11921 12838 16562 17161 22139 23842 34322 44278 83447 120127 154973 166894 223093 240254 309946 446186 840889 1084811 1561651 1681778 2169622 2900209 3123302 5800418 10931557 20301463 21863114 40602926 142110241 284220482