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144405168 = 24319191829
BaseRepresentation
bin10001001101101…
…11001010110000
3101001201112122120
420212313022300
5243431431133
622155034240
73402265215
oct1046671260
9331645576
10144405168
1174570816
124043b980
1323bc045b
141526db0c
15ca26ab3
hex89b72b0

144405168 has 80 divisors (see below), whose sum is σ = 395212800. Its totient is φ = 45308160.

The previous prime is 144405139. The next prime is 144405193. The reversal of 144405168 is 861504441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173778 + ... + 174606.

It is an arithmetic number, because the mean of its divisors is an integer number (4940160).

Almost surely, 2144405168 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 144405168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197606400).

144405168 is an abundant number, since it is smaller than the sum of its proper divisors (250807632).

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

144405168 is a wasteful number, since it uses less digits than its factorization.

144405168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 144405168 is about 12016.8701415968. The cubic root of 144405168 is about 524.6394113485.

The spelling of 144405168 in words is "one hundred forty-four million, four hundred five thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 191 228 304 382 456 573 764 829 912 1146 1528 1658 2292 2487 3056 3316 3629 4584 4974 6632 7258 9168 9948 10887 13264 14516 15751 19896 21774 29032 31502 39792 43548 47253 58064 63004 87096 94506 126008 158339 174192 189012 252016 316678 378024 475017 633356 756048 950034 1266712 1900068 2533424 3008441 3800136 6016882 7600272 9025323 12033764 18050646 24067528 36101292 48135056 72202584 144405168