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285061 = 7193211
BaseRepresentation
bin1000101100110000101
3112111000211
41011212011
533110221
610035421
72265040
oct1054605
9474024
10285061
11185197
12118b71
139c99a
1475c57
15596e1
hex45985

285061 has 8 divisors (see below), whose sum is σ = 329024. Its totient is φ = 241920.

The previous prime is 285049. The next prime is 285071. The reversal of 285061 is 160582.

It is a happy number.

285061 is nontrivially palindromic in base 14.

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

It is not a de Polignac number, because 285061 - 213 = 276869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285031) 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, 1246 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (41128).

2285061 is an apocalyptic number.

It is an amenable number.

285061 is a deficient number, since it is larger than the sum of its proper divisors (43963).

285061 is a wasteful number, since it uses less digits than its factorization.

285061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 285061 is about 533.9110412794. The cubic root of 285061 is about 65.8131384228.

The spelling of 285061 in words is "two hundred eighty-five thousand, sixty-one".

Divisors: 1 7 193 211 1351 1477 40723 285061