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285350 = 25213439
BaseRepresentation
bin1000101101010100110
3112111102112
41011222212
533112400
610041022
72265632
oct1055246
9474375
10285350
1118542a
12119172
139cb60
1475dc2
1559835
hex45aa6

285350 has 24 divisors (see below), whose sum is σ = 572880. Its totient is φ = 105120.

The previous prime is 285343. The next prime is 285377. The reversal of 285350 is 53582.

It is a congruent number.

It is an unprimeable number.

285350 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 11 ways as a sum of consecutive naturals, for example, 431 + ... + 869.

It is an arithmetic number, because the mean of its divisors is an integer number (23870).

2285350 is an apocalyptic number.

285350 is an abundant number, since it is smaller than the sum of its proper divisors (287530).

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

285350 is a wasteful number, since it uses less digits than its factorization.

285350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 285350 is about 534.1816170555. The cubic root of 285350 is about 65.8353717612.

The spelling of 285350 in words is "two hundred eighty-five thousand, three hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 439 650 878 2195 4390 5707 10975 11414 21950 28535 57070 142675 285350