Search a number
-
+
285029 = 594831
BaseRepresentation
bin1000101100101100101
3112110222122
41011211211
533110104
610035325
72264663
oct1054545
9473878
10285029
11185168
12118b45
139c974
1475c33
15596be
hex45965

285029 has 4 divisors (see below), whose sum is σ = 289920. Its totient is φ = 280140.

The previous prime is 285023. The next prime is 285031. The reversal of 285029 is 920582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285029 - 212 = 280933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284989 and 285007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (72480).

2285029 is an apocalyptic number.

It is an amenable number.

285029 is a deficient number, since it is larger than the sum of its proper divisors (4891).

285029 is an equidigital number, since it uses as much as digits as its factorization.

285029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 285029 is about 533.8810728992. The cubic root of 285029 is about 65.8106756760.

The spelling of 285029 in words is "two hundred eighty-five thousand, twenty-nine".

Divisors: 1 59 4831 285029