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144280 = 2353607
BaseRepresentation
bin100011001110011000
321022220201
4203032120
514104110
63031544
71140433
oct431630
9238821
10144280
1199444
126b5b4
1350896
143a81a
152cb3a
hex23398

144280 has 16 divisors (see below), whose sum is σ = 324720. Its totient is φ = 57696.

The previous prime is 144271. The next prime is 144289. The reversal of 144280 is 82441.

It is an interprime number because it is at equal distance from previous prime (144271) and next prime (144289).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1764 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (20295).

2144280 is an apocalyptic number.

144280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144280 is an abundant number, since it is smaller than the sum of its proper divisors (180440).

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

144280 is a wasteful number, since it uses less digits than its factorization.

144280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 144280 is about 379.8420724459. The cubic root of 144280 is about 52.4487784623.

It can be divided in two parts, 144 and 280, that added together give a palindrome (424).

The spelling of 144280 in words is "one hundred forty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3607 7214 14428 18035 28856 36070 72140 144280