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144230737 = 7171212023
BaseRepresentation
bin10001001100011…
…00100101010001
3101001101200101011
420212030211101
5243410340422
622151210521
73400640530
oct1046144521
9331350334
10144230737
1174461762
1240376a41
1323b5bc41
1415226317
15c9e0077
hex898c951

144230737 has 8 divisors (see below), whose sum is σ = 174531456. Its totient is φ = 116354112.

The previous prime is 144230711. The next prime is 144230741. The reversal of 144230737 is 737032441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144230737 - 27 = 144230609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144230699 and 144230708.

It is not an unprimeable number, because it can be changed into a prime (144230707) 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 in 7 ways as a sum of consecutive naturals, for example, 605893 + ... + 606130.

It is an arithmetic number, because the mean of its divisors is an integer number (21816432).

Almost surely, 2144230737 is an apocalyptic number.

144230737 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

144230737 is a deficient number, since it is larger than the sum of its proper divisors (30300719).

144230737 is a wasteful number, since it uses less digits than its factorization.

144230737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212047.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 144230737 is about 12009.6101935075. The cubic root of 144230737 is about 524.4280840801.

The spelling of 144230737 in words is "one hundred forty-four million, two hundred thirty thousand, seven hundred thirty-seven".

Divisors: 1 7 17 119 1212023 8484161 20604391 144230737