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144805268 = 2236201317
BaseRepresentation
bin10001010000110…
…00110110010100
3101002110212111002
420220120312110
5244032232033
622211402432
73405552536
oct1050306624
9332425432
10144805268
1174814383
12405b3418
13240005ba
1415335856
15caa53e8
hex8a18d94

144805268 has 6 divisors (see below), whose sum is σ = 253409226. Its totient is φ = 72402632.

The previous prime is 144805267. The next prime is 144805307. The reversal of 144805268 is 862508441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107081104 + 37724164 = 10348^2 + 6142^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144805267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18100655 + ... + 18100662.

It is an arithmetic number, because the mean of its divisors is an integer number (42234871).

Almost surely, 2144805268 is an apocalyptic number.

It is an amenable number.

144805268 is a deficient number, since it is larger than the sum of its proper divisors (108603958).

144805268 is a wasteful number, since it uses less digits than its factorization.

144805268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36201321 (or 36201319 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 144805268 is about 12033.5060560088. The cubic root of 144805268 is about 525.1234998952.

The spelling of 144805268 in words is "one hundred forty-four million, eight hundred five thousand, two hundred sixty-eight".

Divisors: 1 2 4 36201317 72402634 144805268