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249488 = 2431503
BaseRepresentation
bin111100111010010000
3110200020022
4330322100
530440423
65203012
72056241
oct747220
9420208
10249488
11160498
12100468
1389735
1466cc8
154ddc8
hex3ce90

249488 has 20 divisors (see below), whose sum is σ = 499968. Its totient is φ = 120480.

The previous prime is 249463. The next prime is 249497. The reversal of 249488 is 884942.

249488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

249488 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249488.

It is an unprimeable number.

249488 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, 245 + ... + 747.

2249488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249984).

249488 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

249488 is a wasteful number, since it uses less digits than its factorization.

249488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 536 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 249488 is about 499.4877375872. The cubic root of 249488 is about 62.9530177978.

It can be divided in two parts, 249 and 488, that added together give a palindrome (737).

The spelling of 249488 in words is "two hundred forty-nine thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 503 1006 2012 4024 8048 15593 31186 62372 124744 249488