Search a number
-
+
17968019464960 = 285499112924917
BaseRepresentation
bin1000001010111100000010…
…11010101110001100000000
32100121201121011121010222221
410011132001122232030000
54323342000440334320
6102114221051140424
73533101162323205
oct405360132561400
970551534533887
1017968019464960
1157a8215620a04
1220223a5444714
13a044b9266c66
1446192a2d3cac
152125c94643aa
hex1057816ae300

17968019464960 has 144 divisors (see below), whose sum is σ = 43165202220000. Its totient is φ = 7166163714048.

The previous prime is 17968019464957. The next prime is 17968019464963. The reversal of 17968019464960 is 6946491086971.

It is an interprime number because it is at equal distance from previous prime (17968019464957) and next prime (17968019464963).

It is a self number, because there is not a number n which added to its sum of digits gives 17968019464960.

It is not an unprimeable number, because it can be changed into a prime (17968019464963) 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 15 ways as a sum of consecutive naturals, for example, 721102422 + ... + 721127338.

It is an arithmetic number, because the mean of its divisors is an integer number (299758348750).

Almost surely, 217968019464960 is an apocalyptic number.

17968019464960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17968019464960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21582601110000).

17968019464960 is an abundant number, since it is smaller than the sum of its proper divisors (25197182755040).

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

17968019464960 is a wasteful number, since it uses less digits than its factorization.

17968019464960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26566 (or 26552 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 70.

The spelling of 17968019464960 in words is "seventeen trillion, nine hundred sixty-eight billion, nineteen million, four hundred sixty-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 499 640 998 1129 1280 1996 2258 2495 3992 4516 4990 5645 7984 9032 9980 11290 15968 18064 19960 22580 24917 31936 36128 39920 45160 49834 63872 72256 79840 90320 99668 124585 127744 144512 159680 180640 199336 249170 289024 319360 361280 398672 498340 563371 638720 722560 797344 996680 1126742 1445120 1594688 1993360 2253484 2816855 3189376 3986720 4506968 5633710 6378752 7973440 9013936 11267420 12433583 15946880 18027872 22534840 24867166 28131293 31893760 36055744 45069680 49734332 56262586 62167915 72111488 90139360 99468664 112525172 124335830 140656465 144222976 180278720 198937328 225050344 248671660 281312930 360557440 397874656 450100688 497343320 562625860 721114880 795749312 900201376 994686640 1125251720 1591498624 1800402752 1989373280 2250503440 3182997248 3600805504 3978746560 4501006880 7201611008 7957493120 9002013760 14037515207 15914986240 18004027520 28075030414 36008055040 56150060828 70187576035 112300121656 140375152070 224600243312 280750304140 449200486624 561500608280 898400973248 1123001216560 1796801946496 2246002433120 3593603892992 4492004866240 8984009732480 17968019464960