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252743 = 312263
BaseRepresentation
bin111101101101000111
3110211200212
4331231013
531041433
65230035
72101601
oct755507
9424625
10252743
11162987
1210231b
138b06a
1468171
154ed48
hex3db47

252743 has 6 divisors (see below), whose sum is σ = 262152. Its totient is φ = 243660.

The previous prime is 252737. The next prime is 252761. The reversal of 252743 is 347252.

It is not a de Polignac number, because 252743 - 24 = 252727 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 830 + ... + 1092.

It is an arithmetic number, because the mean of its divisors is an integer number (43692).

2252743 is an apocalyptic number.

252743 is a deficient number, since it is larger than the sum of its proper divisors (9409).

252743 is an equidigital number, since it uses as much as digits as its factorization.

252743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 294 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 252743 is about 502.7355169470. The cubic root of 252743 is about 63.2256125158.

Adding to 252743 its reverse (347252), we get a palindrome (599995).

The spelling of 252743 in words is "two hundred fifty-two thousand, seven hundred forty-three".

Divisors: 1 31 263 961 8153 252743