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253144 = 2331643
BaseRepresentation
bin111101110011011000
3110212020201
4331303120
531100034
65231544
72103013
oct756330
9425221
10253144
11163211
121025b4
138b2b8
146837a
1550014
hex3dcd8

253144 has 8 divisors (see below), whose sum is σ = 474660. Its totient is φ = 126568.

The previous prime is 253133. The next prime is 253153. The reversal of 253144 is 441352.

253144 is nontrivially palindromic in base 13.

253144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15814 + ... + 15829.

2253144 is an apocalyptic number.

It is an amenable number.

253144 is a deficient number, since it is larger than the sum of its proper divisors (221516).

253144 is a wasteful number, since it uses less digits than its factorization.

253144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31649 (or 31645 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 253144 is about 503.1341769349. The cubic root of 253144 is about 63.2590325959.

Adding to 253144 its reverse (441352), we get a palindrome (694496).

The spelling of 253144 in words is "two hundred fifty-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 31643 63286 126572 253144