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286725 = 3523823
BaseRepresentation
bin1000110000000000101
3112120022110
41012000011
533133400
610051233
72302635
oct1060005
9476273
10286725
1118646a
12119b19
13a067a
14766c5
1559e50
hex46005

286725 has 12 divisors (see below), whose sum is σ = 474176. Its totient is φ = 152880.

The previous prime is 286721. The next prime is 286733. The reversal of 286725 is 527682.

It is not a de Polignac number, because 286725 - 22 = 286721 is a prime.

It is a super-2 number, since 2×2867252 = 164422451250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 286692 and 286701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1837 + ... + 1986.

2286725 is an apocalyptic number.

286725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

286725 is a deficient number, since it is larger than the sum of its proper divisors (187451).

286725 is a wasteful number, since it uses less digits than its factorization.

286725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836 (or 3831 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 286725 is about 535.4670858232. The cubic root of 286725 is about 65.9409480988.

The spelling of 286725 in words is "two hundred eighty-six thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 3823 11469 19115 57345 95575 286725