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254285 = 550857
BaseRepresentation
bin111110000101001101
3110220210222
4332011031
531114120
65241125
72106233
oct760515
9426728
10254285
11164059
121031a5
138b985
1468953
1550525
hex3e14d

254285 has 4 divisors (see below), whose sum is σ = 305148. Its totient is φ = 203424.

The previous prime is 254281. The next prime is 254291. The reversal of 254285 is 582452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44521 + 209764 = 211^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 254285 - 22 = 254281 is a prime.

It is a super-2 number, since 2×2542852 = 129321722450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 254285.

It is not an unprimeable number, because it can be changed into a prime (254281) 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, 25424 + ... + 25433.

It is an arithmetic number, because the mean of its divisors is an integer number (76287).

2254285 is an apocalyptic number.

It is an amenable number.

254285 is a deficient number, since it is larger than the sum of its proper divisors (50863).

254285 is an equidigital number, since it uses as much as digits as its factorization.

254285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50862.

The product of its digits is 3200, while the sum is 26.

The square root of 254285 is about 504.2667944650. The cubic root of 254285 is about 63.3539329728.

It can be divided in two parts, 254 and 285, that multiplied together give a triangular number (72390 = T380).

The spelling of 254285 in words is "two hundred fifty-four thousand, two hundred eighty-five".

Divisors: 1 5 50857 254285