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144856938 = 2343561461
BaseRepresentation
bin10001010001001…
…01011101101010
3101002120111100210
420220211131222
5244040410223
622212441550
73406156302
oct1050453552
9332514323
10144856938
117484a186
12406192b6
132401ac85
141534a602
15cab5893
hex8a2576a

144856938 has 16 divisors (see below), whose sum is σ = 296451936. Its totient is φ = 47162640.

The previous prime is 144856919. The next prime is 144856939. The reversal of 144856938 is 839658441.

It is not an unprimeable number, because it can be changed into a prime (144856939) 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 7 ways as a sum of consecutive naturals, for example, 280473 + ... + 280988.

It is an arithmetic number, because the mean of its divisors is an integer number (18528246).

Almost surely, 2144856938 is an apocalyptic number.

144856938 is an abundant number, since it is smaller than the sum of its proper divisors (151594998).

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

144856938 is a wasteful number, since it uses less digits than its factorization.

144856938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561509.

The product of its digits is 829440, while the sum is 48.

The square root of 144856938 is about 12035.6527866169. The cubic root of 144856938 is about 525.1859513631.

The spelling of 144856938 in words is "one hundred forty-four million, eight hundred fifty-six thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 43 86 129 258 561461 1122922 1684383 3368766 24142823 48285646 72428469 144856938