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144628 = 221119173
BaseRepresentation
bin100011010011110100
321100101121
4203103310
514112003
63033324
71141441
oct432364
9240347
10144628
1199730
126b844
1350aa3
143a9c8
152ccbd
hex234f4

144628 has 24 divisors (see below), whose sum is σ = 292320. Its totient is φ = 61920.

The previous prime is 144611. The next prime is 144629. The reversal of 144628 is 826441.

144628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144629) by changing a digit.

144628 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 7 ways as a sum of consecutive naturals, for example, 750 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (12180).

2144628 is an apocalyptic number.

It is an amenable number.

144628 is an abundant number, since it is smaller than the sum of its proper divisors (147692).

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

144628 is a wasteful number, since it uses less digits than its factorization.

144628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 205 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 144628 is about 380.2998816723. The cubic root of 144628 is about 52.4909130153.

The spelling of 144628 in words is "one hundred forty-four thousand, six hundred twenty-eight".

Divisors: 1 2 4 11 19 22 38 44 76 173 209 346 418 692 836 1903 3287 3806 6574 7612 13148 36157 72314 144628