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284136 = 23311839
BaseRepresentation
bin1000101010111101000
3112102202120
41011113220
533043021
610031240
72262246
oct1052750
9472676
10284136
11184526
12118520
139c438
1475796
15592c6
hex455e8

284136 has 16 divisors (see below), whose sum is σ = 710400. Its totient is φ = 94704.

The previous prime is 284131. The next prime is 284149. The reversal of 284136 is 631482.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 11839 = 284136 / (2 + 8 + 4 + 1 + 3 + 6).

It is a nude number because it is divisible by every one of its digits.

It is one of the 548 Lynch-Bell numbers.

It is not an unprimeable number, because it can be changed into a prime (284131) by changing a digit.

284136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5896 + ... + 5943.

It is an arithmetic number, because the mean of its divisors is an integer number (44400).

2284136 is an apocalyptic number.

It is an amenable number.

284136 is an abundant number, since it is smaller than the sum of its proper divisors (426264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284136 is a wasteful number, since it uses less digits than its factorization.

284136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848 (or 11844 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 284136 is about 533.0440882329. The cubic root of 284136 is about 65.7418751737.

The spelling of 284136 in words is "two hundred eighty-four thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 11839 23678 35517 47356 71034 94712 142068 284136