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144504040 = 2354218581
BaseRepresentation
bin10001001110011…
…11010011101000
3101001220120021111
420213033103220
5243443112130
622201120104
73403156402
oct1047172350
9331816244
10144504040
117462902a
1240489034
1323c26465
1415297b72
15ca4602a
hex89cf4e8

144504040 has 32 divisors (see below), whose sum is σ = 325944360. Its totient is φ = 57657600.

The previous prime is 144503999. The next prime is 144504067. The reversal of 144504040 is 40405441.

144504040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18301284 + 126202756 = 4278^2 + 11234^2 .

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, 12550 + ... + 21130.

Almost surely, 2144504040 is an apocalyptic number.

144504040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144504040 is an abundant number, since it is smaller than the sum of its proper divisors (181440320).

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

144504040 is a wasteful number, since it uses less digits than its factorization.

144504040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013 (or 9009 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 144504040 is about 12020.9833208436. The cubic root of 144504040 is about 524.7591215464.

Adding to 144504040 its reverse (40405441), we get a palindrome (184909481).

It can be divided in two parts, 14 and 4504040, that added together give a palindrome (4504054).

The spelling of 144504040 in words is "one hundred forty-four million, five hundred four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 421 842 1684 2105 3368 4210 8420 8581 16840 17162 34324 42905 68648 85810 171620 343240 3612601 7225202 14450404 18063005 28900808 36126010 72252020 144504040