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144044860 = 22523487643
BaseRepresentation
bin10001001010111…
…11001100111100
3101001001020101211
420211133030330
5243333413420
622143214204
73366234601
oct1045371474
9331036354
10144044860
1174345043
12402a7364
1323ac545b
14151b86a8
15c9a4e5a
hex895f33c

144044860 has 48 divisors (see below), whose sum is σ = 316786176. Its totient is φ = 54914112.

The previous prime is 144044819. The next prime is 144044861. The reversal of 144044860 is 68440441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144044861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223699 + ... + 224341.

It is an arithmetic number, because the mean of its divisors is an integer number (6599712).

Almost surely, 2144044860 is an apocalyptic number.

144044860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144044860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158393088).

144044860 is an abundant number, since it is smaller than the sum of its proper divisors (172741316).

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

144044860 is a wasteful number, since it uses less digits than its factorization.

144044860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 144044860 is about 12001.8690211150. The cubic root of 144044860 is about 524.2027021069.

The spelling of 144044860 in words is "one hundred forty-four million, forty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 487 643 974 1286 1948 2435 2572 3215 4870 6430 9740 11201 12860 14789 22402 29578 44804 56005 59156 73945 112010 147890 224020 295780 313141 626282 1252564 1565705 3131410 6262820 7202243 14404486 28808972 36011215 72022430 144044860