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144744 = 23337163
BaseRepresentation
bin100011010101101000
321100112220
4203111220
514112434
63034040
71141665
oct432550
9240486
10144744
1199826
126b920
1350b62
143aa6c
152cd49
hex23568

144744 has 32 divisors (see below), whose sum is σ = 373920. Its totient is φ = 46656.

The previous prime is 144737. The next prime is 144751. The reversal of 144744 is 447441.

It is an interprime number because it is at equal distance from previous prime (144737) and next prime (144751).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144744.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807 + ... + 969.

It is an arithmetic number, because the mean of its divisors is an integer number (11685).

2144744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186960).

144744 is an abundant number, since it is smaller than the sum of its proper divisors (229176).

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

144744 is a wasteful number, since it uses less digits than its factorization.

144744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 205 counting only the distinct ones).

The product of its digits is 1792, while the sum is 24.

The square root of 144744 is about 380.4523623267. The cubic root of 144744 is about 52.5049428453.

It can be divided in two parts, 144 and 744, that added together give a palindrome (888).

The spelling of 144744 in words is "one hundred forty-four thousand, seven hundred forty-four", and thus it is an iban number.

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 163 222 296 326 444 489 652 888 978 1304 1956 3912 6031 12062 18093 24124 36186 48248 72372 144744