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284401 = 13131167
BaseRepresentation
bin1000101011011110001
3112110010101
41011123301
533100101
610032401
72263105
oct1053361
9473111
10284401
11184747
12118701
139c5b0
1475905
1559401
hex456f1

284401 has 8 divisors (see below), whose sum is σ = 310464. Its totient is φ = 258960.

The previous prime is 284387. The next prime is 284407. The reversal of 284401 is 104482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 284401 - 25 = 284369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (38808).

2284401 is an apocalyptic number.

It is an amenable number.

284401 is a deficient number, since it is larger than the sum of its proper divisors (26063).

284401 is a wasteful number, since it uses less digits than its factorization.

284401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 284401 is about 533.2926026114. The cubic root of 284401 is about 65.7623069196.

Adding to 284401 its reverse (104482), we get a palindrome (388883).

It can be divided in two parts, 28440 and 1, that added together give a triangular number (28441 = T238).

The spelling of 284401 in words is "two hundred eighty-four thousand, four hundred one".

Divisors: 1 13 131 167 1703 2171 21877 284401