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12144325 = 521937691
BaseRepresentation
bin101110010100…
…111011000101
3211211222212211
4232110323011
511102104300
61112143421
7205140124
oct56247305
924758784
1012144325
116945236
124097b71
1326928bb
141881abb
1510ed4ba
hexb94ec5

12144325 has 24 divisors (see below), whose sum is σ = 16303520. Its totient is φ = 8942400.

The previous prime is 12144313. The next prime is 12144331. The reversal of 12144325 is 52344121.

It is a de Polignac number, because none of the positive numbers 2k-12144325 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12144296 and 12144305.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17230 + ... + 17920.

Almost surely, 212144325 is an apocalyptic number.

It is an amenable number.

12144325 is a deficient number, since it is larger than the sum of its proper divisors (4159195).

12144325 is a wasteful number, since it uses less digits than its factorization.

12144325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 752 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12144325 is about 3484.8708727871. The cubic root of 12144325 is about 229.8570315018.

Adding to 12144325 its reverse (52344121), we get a palindrome (64488446).

The spelling of 12144325 in words is "twelve million, one hundred forty-four thousand, three hundred twenty-five".

Divisors: 1 5 19 25 37 95 185 475 691 703 925 3455 3515 13129 17275 17575 25567 65645 127835 328225 485773 639175 2428865 12144325