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144503023 = 7101313653
BaseRepresentation
bin10001001110011…
…11000011101111
3101001220111212211
420213033003233
5243443044043
622201111251
73403153420
oct1047170357
9331814784
10144503023
1174628295
1240488527
1323c25b62
1415297647
15ca45a9d
hex89cf0ef

144503023 has 16 divisors (see below), whose sum is σ = 167570496. Its totient is φ = 122054400.

The previous prime is 144503003. The next prime is 144503033. The reversal of 144503023 is 320305441.

It is a cyclic number.

It is not a de Polignac number, because 144503023 - 221 = 142405871 is a prime.

It is a super-2 number, since 2×1445030232 = 41762247312277058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144502985 and 144503003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144503003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220965 + ... + 221617.

It is an arithmetic number, because the mean of its divisors is an integer number (10473156).

Almost surely, 2144503023 is an apocalyptic number.

144503023 is a deficient number, since it is larger than the sum of its proper divisors (23067473).

144503023 is a wasteful number, since it uses less digits than its factorization.

144503023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 144503023 is about 12020.9410197372. The cubic root of 144503023 is about 524.7578904821.

Adding to 144503023 its reverse (320305441), we get a palindrome (464808464).

The spelling of 144503023 in words is "one hundred forty-four million, five hundred three thousand, twenty-three".

Divisors: 1 7 101 313 653 707 2191 4571 31613 65953 204389 221291 461671 1430723 20643289 144503023