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144444023 = 1925729581
BaseRepresentation
bin10001001110000…
…00101001110111
3101001210111221122
420213000221313
5243434202043
622155534155
73402516413
oct1047005167
9331714848
10144444023
1174597a29
124045a35b
1323c05049
141527dd43
15ca33368
hex89c0a77

144444023 has 8 divisors (see below), whose sum is σ = 152643120. Its totient is φ = 136304640.

The previous prime is 144444017. The next prime is 144444067. The reversal of 144444023 is 320444441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 144444023 - 222 = 140249719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144443983 and 144444001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144444823) 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, 9908 + ... + 19673.

It is an arithmetic number, because the mean of its divisors is an integer number (19080390).

Almost surely, 2144444023 is an apocalyptic number.

144444023 is a deficient number, since it is larger than the sum of its proper divisors (8199097).

144444023 is a wasteful number, since it uses less digits than its factorization.

144444023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29857.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 144444023 is about 12018.4867183851. The cubic root of 144444023 is about 524.6864619183.

Adding to 144444023 its reverse (320444441), we get a palindrome (464888464).

The spelling of 144444023 in words is "one hundred forty-four million, four hundred forty-four thousand, twenty-three".

Divisors: 1 19 257 4883 29581 562039 7602317 144444023