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284257341 = 3231819929
BaseRepresentation
bin10000111100010…
…110110000111101
3201210212202202200
4100330112300331
51040232213331
644112342113
710021101414
oct2074266075
9653782680
10284257341
11136501825
127b244939
1346b78414
1429a7647b
1519e4e5e6
hex10f16c3d

284257341 has 12 divisors (see below), whose sum is σ = 410764380. Its totient is φ = 189426240.

The previous prime is 284257313. The next prime is 284257343. The reversal of 284257341 is 143752482.

It is a happy number.

284257341 is a `hidden beast` number, since 2 + 8 + 42 + 573 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38081241 + 246176100 = 6171^2 + 15690^2 .

It is a de Polignac number, because none of the positive numbers 2k-284257341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 284257296 and 284257305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284257343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23665 + ... + 33593.

It is an arithmetic number, because the mean of its divisors is an integer number (34230365).

Almost surely, 2284257341 is an apocalyptic number.

It is an amenable number.

284257341 is a deficient number, since it is larger than the sum of its proper divisors (126507039).

284257341 is a wasteful number, since it uses less digits than its factorization.

284257341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13116 (or 13113 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 284257341 is about 16859.9330069843. The cubic root of 284257341 is about 657.5123225341.

The spelling of 284257341 in words is "two hundred eighty-four million, two hundred fifty-seven thousand, three hundred forty-one".

Divisors: 1 3 9 3181 9543 9929 28629 29787 89361 31584149 94752447 284257341