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144445023 = 3244336229
BaseRepresentation
bin10001001110000…
…00111001011111
3101001210120022200
420213000321133
5243434220043
622155542543
73402522342
oct1047007137
9331716280
10144445023
1174598758
124045aa53
1323c05638
1415280459
15ca337d3
hex89c0e5f

144445023 has 12 divisors (see below), whose sum is σ = 209119560. Its totient is φ = 96076656.

The previous prime is 144445019. The next prime is 144445033. The reversal of 144445023 is 320544441.

It is a happy number.

144445023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144445023 - 22 = 144445019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144445033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14128 + ... + 22101.

It is an arithmetic number, because the mean of its divisors is an integer number (17426630).

Almost surely, 2144445023 is an apocalyptic number.

144445023 is a deficient number, since it is larger than the sum of its proper divisors (64674537).

144445023 is a wasteful number, since it uses less digits than its factorization.

144445023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36678 (or 36675 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 144445023 is about 12018.5283208885. The cubic root of 144445023 is about 524.6876727339.

Adding to 144445023 its reverse (320544441), we get a palindrome (464989464).

The spelling of 144445023 in words is "one hundred forty-four million, four hundred forty-five thousand, twenty-three".

Divisors: 1 3 9 443 1329 3987 36229 108687 326061 16049447 48148341 144445023