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144450 = 23352107
BaseRepresentation
bin100011010001000010
321100011000
4203101002
514110300
63032430
71141065
oct432102
9240130
10144450
1199589
126b716
1350997
143a8dc
152cc00
hex23442

144450 has 48 divisors (see below), whose sum is σ = 401760. Its totient is φ = 38160.

The previous prime is 144439. The next prime is 144451. The reversal of 144450 is 54441.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (144451) by changing a digit.

144450 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 23 ways as a sum of consecutive naturals, for example, 1297 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (8370).

2144450 is an apocalyptic number.

144450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200880).

144450 is an abundant number, since it is smaller than the sum of its proper divisors (257310).

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

144450 is a wasteful number, since it uses less digits than its factorization.

144450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 144450 is about 380.0657837796. The cubic root of 144450 is about 52.4693698880.

Adding to 144450 its reverse (54441), we get a palindrome (198891).

Subtracting from 144450 its reverse (54441), we obtain a palindrome (90009).

The spelling of 144450 in words is "one hundred forty-four thousand, four hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 107 135 150 214 225 270 321 450 535 642 675 963 1070 1350 1605 1926 2675 2889 3210 4815 5350 5778 8025 9630 14445 16050 24075 28890 48150 72225 144450