18438339541440

Names of 18438339541440

• Cardinal: 18438339541440 can be written as Eighteen trillion, four hundred thirty-eight billion, three hundred thirty-nine million, five hundred forty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.843833954144 × 10¹³

Factors of 18438339541440

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1484

Divisors of 18438339541440

• Number of divisors d(n): 1792
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 20 21 24 26 28 30 32 34 35 37 39 40 42 48 51 52 56 60 64 65 68 70 74 78 80 84 85 91 96 102 104 105 111 112 119 120 130 136 140 148 156 160 168 170 182 185 192 195 204 208 210 221 222 224 238 240 255 259 260 272 273 280 296 307 312 320 336 340 357 364 370 390 408 416 420 442 444 448 455 476 480 481 510 518 520 544 546 555 560 592 595 614 624 629 663 672 680 714 728 740 777 780 816 832 840 884 888 910 921 952 960 962 1020 1036 1040 1088 1092 1093 1105 1110 1120 1184 1190 1228 1248 1258 1295 1326 1344 1360 1365 1428 1443 1456 1480 1535 1547 1554 1560 1632 1680 1768 1776 1785 1820 1842 1887 1904 1924 2040 2072 2080 2149 2184 2186 2210 2220 2240 2368 2380 2405 2456 2496 2516 2590 2652 2720 2730 2856 2886 2912 2960 3070 3094 3108 3120 3145 3264 3279 3315 3360 3367 3536 3552 3570 3640 3684 3774 3808 3848 3885 3991 4080 4144 4160 4298 4368 4372 4403 4420 4440 4605 4641 4760 4810 4912 5032 5180 5219 5304 5440 5460 5465 5712 5772 5824 5920 6140 6188 6216 6240 6290 6447 6558 6630 6720 6734 7072 7104 7140 7215 7280 7368 7548 7616 7651 7696 7735 7770 7982 8160 8177 8288 8596 8736 8744 8806 8840 8880 9210 9282 9435 9520 9620 9824 10064 10101 10360 10438 10608 10745 10920 10930 11359 11424 11544 11840 11973 12280 12376 12432 12480 12580 12894 13116 13209 13260 13468 14144 14209 14280 14430 14560 14736 15096 15302 15392 15470 15540 15657 15964 16320 16354 16395 16576 16835 17192 17472 17488 17612 17680 17760 18420 18564 18581 18870 19040 19240 19648 19955 20128 20202 20720 20876 21216 21490 21840 21860 22015 22718 22848 22953 23088 23205 23946 24531 24560 24752 24864 25160 25788 26095 26232 26418 26520 26936 27937 28418 28560 28860 29120 29472 30192 30604 30784 30940 31080 31314 31928 32235 32708 32790 33670 34077 34384 34976 35224 35360 35520 36533 36840 37128 37162 37740 38080 38255 38480 39910 40256 40404 40441 40885 41440 41752 42432 42627 42980 43680 43720 44030 45436 45906 46176 46410 47892 49062 49120 49504 49728 50320 50505 51576 52190 52464 52836 53040 53872 55743 55874 56795 56836 57120 57239 57720 58944 59865 60384 61208 61880 62160 62628 63856 64470 65416 65580 66045 67340 67847 68154 68768 69952 70448 70720 71045 73066 73680 74256 74324 75480 76510 76960 78285 79513 79820 80808 80882 81770 82880 83504 83811 85254 85960 87360 87440 88060 90872 91812 92352 92820 92905 95784 98124 98240 99008 99463 100640 101010 103152 104380 104928 105672 106080 107744 109599 111486 111748 113590 113672 114240 114478 114765 115440 119730 120768 121323 122416 122655 123760 124320 125256 127712 128940 130067 130832 131160 132090 134680 135694 136308 137536 139685 140896 142090 146132 147360 147667 148512 148648 150960 153020 153920 156570 159026 159640 161616 161764 163540 167008 167622 170385 170508 171717 171920 174880 176120 181744 182665 183624 185640 185810 191568 193103 196248 198926 201280 202020 202205 203541 206304 208760 209856 211344 212160 213135 215488 219198 222972 223496 227180 227344 228956 229530 230880 238539 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177291726360 180768034720 192066036890 202619115840 216921641664 219504042160 230479244268 236388968480 249166750560 263404850592 271152052080 283666762176 288099055335 307305659024 329256063240 354583452720 361536069440 384132073780 439008084320 460958488536 472777936960 498333501120 526809701184 542304104160 576198110670 614611318048 658512126480 709166905440 768264147560 878016168640 921916977072 1084608208320 1152396221340 1229222636096 1317024252960 1418333810880 1536528295120 1843833954144 2304792442680 2634048505920 3073056590240 3687667908288 4609584885360 6146113180480 9219169770720 18438339541440
• Sum of all divisors σ(n): 78678690951168
• Sum of proper divisors (its aliquot sum) s(n): 60240351409728
• 18438339541440 is an abundant number, because the sum of its proper divisors (60240351409728) is greater than itself. Its abundance is 41802011868288

Bases of 18438339541440

• Binary: 100001100010100000010101011011011100111000000₂
• Hexadecimal: 0x10C502ADB9C0
• Base-36: 6JAGFARPC

Squares and roots of 18438339541440

• 18438339541440 squared (18438339541440²) is 339972365045429829477273600
• 18438339541440 cubed (18438339541440³) is 6268525901414022926811690304725417984000
• The square root of 18438339541440 is 4293988.7682014261
• The cube root of 18438339541440 is 26418.4461024425

Scales and comparisons

• 18,438,339,541,440 seconds is equal to 586,282 years, 8 weeks, 3 days, 15 hours, 44 minutes.
• To count from 1 to 18,438,339,541,440 would take you about one million, four hundred sixty-five thousand, seven hundred five years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 18438339541440 cubic inches would be around 2201.5 feet tall.

Recreational maths with 18438339541440

• 18438339541440 backwards is 04414593383481
• The number of decimal digits it has is: 14
• The sum of 18438339541440's digits is 57
• More coming soon!