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255144 = 23310631
BaseRepresentation
bin111110010010101000
3110221222210
4332102220
531131034
65245120
72111601
oct762250
9427883
10255144
1116476a
121037a0
138c196
1468da8
15508e9
hex3e4a8

255144 has 16 divisors (see below), whose sum is σ = 637920. Its totient is φ = 85040.

The previous prime is 255137. The next prime is 255149. The reversal of 255144 is 441552.

255144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 255144.

It is not an unprimeable number, because it can be changed into a prime (255149) by changing a digit.

255144 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5292 + ... + 5339.

It is an arithmetic number, because the mean of its divisors is an integer number (39870).

2255144 is an apocalyptic number.

255144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255144 is an abundant number, since it is smaller than the sum of its proper divisors (382776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255144 is a wasteful number, since it uses less digits than its factorization.

255144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10640 (or 10636 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 255144 is about 505.1178080409. The cubic root of 255144 is about 63.4251914208.

Adding to 255144 its reverse (441552), we get a palindrome (696696).

The spelling of 255144 in words is "two hundred fifty-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 10631 21262 31893 42524 63786 85048 127572 255144