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144330 = 23517283
BaseRepresentation
bin100011001111001010
321022222120
4203033022
514104310
63032110
71140534
oct431712
9238876
10144330
119948a
126b636
1350904
143a854
152cb70
hex233ca

144330 has 32 divisors (see below), whose sum is σ = 368064. Its totient is φ = 36096.

The previous prime is 144323. The next prime is 144341. The reversal of 144330 is 33441.

Adding to 144330 its reverse (33441), we get a palindrome (177771).

Subtracting from 144330 its reverse (33441), we obtain a square (110889 = 3332).

It can be divided in two parts, 144 and 330, that added together give a palindrome (474).

144330 = T110 + T111 + ... + T129.

144330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1443302 = 41662297800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (11502).

2144330 is an apocalyptic number.

144330 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 144330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184032).

144330 is an abundant number, since it is smaller than the sum of its proper divisors (223734).

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

144330 is a wasteful number, since it uses less digits than its factorization.

144330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 144330 is about 379.9078835718. The cubic root of 144330 is about 52.4548364423.

The spelling of 144330 in words is "one hundred forty-four thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 283 510 566 849 1415 1698 2830 4245 4811 8490 9622 14433 24055 28866 48110 72165 144330