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253093 = 416173
BaseRepresentation
bin111101110010100101
3110212011211
4331302211
531044333
65231421
72102611
oct756245
9425154
10253093
11163175
12102571
138b279
1468341
154eecd
hex3dca5

253093 has 4 divisors (see below), whose sum is σ = 259308. Its totient is φ = 246880.

The previous prime is 253081. The next prime is 253103. The reversal of 253093 is 390352.

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 6084 + 247009 = 78^2 + 497^2 .

It is a cyclic number.

It is not a de Polignac number, because 253093 - 213 = 244901 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

253093 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3046 + ... + 3127.

It is an arithmetic number, because the mean of its divisors is an integer number (64827).

2253093 is an apocalyptic number.

It is an amenable number.

253093 is a deficient number, since it is larger than the sum of its proper divisors (6215).

253093 is an equidigital number, since it uses as much as digits as its factorization.

253093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 253093 is about 503.0834920766. The cubic root of 253093 is about 63.2547841216.

The spelling of 253093 in words is "two hundred fifty-three thousand, ninety-three".

Divisors: 1 41 6173 253093