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144287143 = 711131761139
BaseRepresentation
bin10001001100110…
…10010110100111
3101001111112202021
420212122112213
5243414142033
622152324011
73401264140
oct1046322647
9331445667
10144287143
11744a0080
12403a3607
1323b7b810
141523cac7
15ca01b2d
hex899a5a7

144287143 has 64 divisors (see below), whose sum is σ = 209986560. Its totient is φ = 95385600.

The previous prime is 144287141. The next prime is 144287149. The reversal of 144287143 is 341782441.

It is a happy number.

144287143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 144287143 - 21 = 144287141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144287099 and 144287108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144287141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1037968 + ... + 1038106.

It is an arithmetic number, because the mean of its divisors is an integer number (3281040).

Almost surely, 2144287143 is an apocalyptic number.

144287143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144287143 is a deficient number, since it is larger than the sum of its proper divisors (65699417).

144287143 is a wasteful number, since it uses less digits than its factorization.

144287143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its digits is 21504, while the sum is 34.

The square root of 144287143 is about 12011.9583332611. The cubic root of 144287143 is about 524.4964399100.

The spelling of 144287143 in words is "one hundred forty-four million, two hundred eighty-seven thousand, one hundred forty-three".

Divisors: 1 7 11 13 17 61 77 91 119 139 143 187 221 427 671 793 973 1001 1037 1309 1529 1547 1807 2363 2431 4697 5551 7259 8479 8723 10703 11407 12649 13481 16541 17017 19877 25993 30719 59353 61061 79849 93269 94367 110227 139139 144143 148291 181951 215033 337909 652883 771589 1009001 1038037 1212497 1585573 1873859 2365363 8487479 11099011 13117013 20612449 144287143