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143031120312 = 233137197439503
BaseRepresentation
bin1000010100110101010…
…0011011000110111000
3111200012002021202010110
42011031110123012320
54320411431322222
6145412501144320
713222305314523
oct2051524330670
9450162252113
10143031120312
115572837a753
12238789bb0a0
1310645851402
146ccc015bba
153ac1db130c
hex214d51b1b8

143031120312 has 128 divisors (see below), whose sum is σ = 363562214400. Its totient is φ = 46888117248.

The previous prime is 143031120311. The next prime is 143031120361. The reversal of 143031120312 is 213021130341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143031120311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284355853 + ... + 284356355.

It is an arithmetic number, because the mean of its divisors is an integer number (2840329800).

Almost surely, 2143031120312 is an apocalyptic number.

143031120312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143031120312 is an abundant number, since it is smaller than the sum of its proper divisors (220531094088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143031120312 is a wasteful number, since it uses less digits than its factorization.

143031120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 143031120312 its reverse (213021130341), we get a palindrome (356052250653).

The spelling of 143031120312 in words is "one hundred forty-three billion, thirty-one million, one hundred twenty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 137 197 274 394 411 439 503 548 591 788 822 878 1006 1096 1182 1317 1509 1576 1644 1756 2012 2364 2634 3018 3288 3512 4024 4728 5268 6036 10536 12072 26989 53978 60143 68911 80967 86483 99091 107956 120286 137822 161934 172966 180429 198182 206733 215912 220817 240572 259449 275644 297273 323868 345932 360858 396364 413466 441634 481144 518898 551288 594546 647736 662451 691864 721716 792728 826932 883268 1037796 1189092 1324902 1443432 1653864 1766536 2075592 2378184 2649804 5299608 11848171 13575467 23696342 27150934 30251929 35544513 40726401 43500949 47392684 54301868 60503858 71089026 81452802 87001898 90755787 94785368 108603736 121007716 130502847 142178052 162905604 174003796 181511574 242015432 261005694 284356104 325811208 348007592 363023148 522011388 726046296 1044022776 5959630013 11919260026 17878890039 23838520052 35757780078 47677040104 71515560156 143031120312