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144342143 = 1137596011
BaseRepresentation
bin10001001101001…
…11110001111111
3101001121100012022
420212213301333
5243422422033
622153430355
73401613401
oct1046476177
9331540168
10144342143
1174528430
124040b3bb
1323b9a86a
1415254b71
15ca13098
hex89a7c7f

144342143 has 16 divisors (see below), whose sum is σ = 164488320. Its totient is φ = 125488800.

The previous prime is 144342139. The next prime is 144342151. The reversal of 144342143 is 341243441.

It is a cyclic number.

It is not a de Polignac number, because 144342143 - 22 = 144342139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144342103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21008 + ... + 27018.

It is an arithmetic number, because the mean of its divisors is an integer number (10280520).

Almost surely, 2144342143 is an apocalyptic number.

144342143 is a deficient number, since it is larger than the sum of its proper divisors (20146177).

144342143 is a wasteful number, since it uses less digits than its factorization.

144342143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118.

The product of its digits is 4608, while the sum is 26.

The square root of 144342143 is about 12014.2475003639. The cubic root of 144342143 is about 524.5630747212.

Adding to 144342143 its reverse (341243441), we get a palindrome (485585584).

The spelling of 144342143 in words is "one hundred forty-four million, three hundred forty-two thousand, one hundred forty-three".

Divisors: 1 11 37 59 407 649 2183 6011 24013 66121 222407 354649 2446477 3901139 13122013 144342143