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284081425 = 5211363257
BaseRepresentation
bin10000111011101…
…011110100010001
3201210112211110021
4100323223310101
51040211101200
644104503441
710016436505
oct2073536421
9653484407
10284081425
111363a1641
127b17ab81
1346b16324
1429a2c305
1519e1741a
hex10eebd11

284081425 has 6 divisors (see below), whose sum is σ = 352260998. Its totient is φ = 227265120.

The previous prime is 284081423. The next prime is 284081429. The reversal of 284081425 is 524180482.

It can be written as a sum of positive squares in 3 ways, for example, as 72437121 + 211644304 = 8511^2 + 14548^2 .

It is not a de Polignac number, because 284081425 - 21 = 284081423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284081423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5681604 + ... + 5681653.

Almost surely, 2284081425 is an apocalyptic number.

284081425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284081425 is a deficient number, since it is larger than the sum of its proper divisors (68179573).

284081425 is a wasteful number, since it uses less digits than its factorization.

284081425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363267 (or 11363262 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 284081425 is about 16854.7152156303. The cubic root of 284081425 is about 657.3766581321.

The spelling of 284081425 in words is "two hundred eighty-four million, eighty-one thousand, four hundred twenty-five".

Divisors: 1 5 25 11363257 56816285 284081425