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299488 = 2572191
BaseRepresentation
bin1001001000111100000
3120012211011
41021013200
534040423
610230304
72355100
oct1110740
9505734
10299488
11195012
12125394
13a6417
147b200
155db0d
hex491e0

299488 has 36 divisors (see below), whose sum is σ = 689472. Its totient is φ = 127680.

The previous prime is 299479. The next prime is 299501. The reversal of 299488 is 884992.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 299488.

It is a congruent number.

It is an unprimeable number.

299488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1473 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (19152).

2299488 is an apocalyptic number.

299488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344736).

299488 is an abundant number, since it is smaller than the sum of its proper divisors (389984).

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

299488 is a wasteful number, since it uses less digits than its factorization.

299488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 200 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 299488 is about 547.2549679994. The cubic root of 299488 is about 66.9051900258.

It can be divided in two parts, 299 and 488, that added together give a palindrome (787).

The spelling of 299488 in words is "two hundred ninety-nine thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 191 196 224 382 392 764 784 1337 1528 1568 2674 3056 5348 6112 9359 10696 18718 21392 37436 42784 74872 149744 299488