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83468886438 = 2372479716221
BaseRepresentation
bin100110110111100100…
…0100010000110100110
321222110002102202121110
41031233020202012212
52331421013331223
6102202311525450
76013302554100
oct1155710420646
9258402382543
1083468886438
1132443012883
1214215689886
137b429c9642
14407b758570
152287cd1d93
hex136f2221a6

83468886438 has 96 divisors (see below), whose sum is σ = 198560844288. Its totient is φ = 23313057600.

The previous prime is 83468886409. The next prime is 83468886439.

83468886438 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83468886439) 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 47 ways as a sum of consecutive naturals, for example, 13414168 + ... + 13420388.

It is an arithmetic number, because the mean of its divisors is an integer number (2068342128).

Almost surely, 283468886438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83468886438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99280422144).

83468886438 is an abundant number, since it is smaller than the sum of its proper divisors (115091957850).

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

83468886438 is a wasteful number, since it uses less digits than its factorization.

83468886438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7258 (or 7251 counting only the distinct ones).

The product of its digits is 169869312, while the sum is 66.

The spelling of 83468886438 in words is "eighty-three billion, four hundred sixty-eight million, eight hundred eighty-six thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 47 49 94 98 141 147 282 294 329 658 971 987 1942 1974 2303 2913 4606 5826 6221 6797 6909 12442 13594 13818 18663 20391 37326 40782 43547 45637 47579 87094 91274 95158 130641 136911 142737 261282 273822 285474 292387 304829 319459 584774 609658 638918 877161 914487 958377 1754322 1828974 1916754 2046709 2236213 4093418 4472426 6040591 6140127 6708639 12081182 12280254 13417278 14326963 18121773 28653926 36243546 42284137 42980889 84568274 85961778 126852411 253704822 283907777 295988959 567815554 591977918 851723331 887966877 1703446662 1775933754 1987354439 3974708878 5962063317 11924126634 13911481073 27822962146 41734443219 83468886438