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144940768 = 257647057
BaseRepresentation
bin10001010001110…
…01111011100000
3101002201202100121
420220321323200
5244101101033
622214330024
73406655560
oct1050717340
9332652317
10144940768
11748a7165
1240659914
132404a18b
141536cda0
15cad062d
hex8a39ee0

144940768 has 24 divisors (see below), whose sum is σ = 326117232. Its totient is φ = 62117376.

The previous prime is 144940727. The next prime is 144940769. The reversal of 144940768 is 867049441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144940769) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 323305 + ... + 323752.

It is an arithmetic number, because the mean of its divisors is an integer number (13588218).

Almost surely, 2144940768 is an apocalyptic number.

It is an amenable number.

144940768 is an abundant number, since it is smaller than the sum of its proper divisors (181176464).

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

144940768 is an equidigital number, since it uses as much as digits as its factorization.

144940768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647074 (or 647066 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 144940768 is about 12039.1348526379. The cubic root of 144940768 is about 525.2872417554.

The spelling of 144940768 in words is "one hundred forty-four million, nine hundred forty thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 647057 1294114 2588228 4529399 5176456 9058798 10352912 18117596 20705824 36235192 72470384 144940768