18378948672

Names of 18378948672

• Cardinal: 18378948672 can be written as Eighteen billion, three hundred seventy-eight million, nine hundred forty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8378948672 × 10¹⁰

Factors of 18378948672

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 242

Divisors of 18378948672

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 31 32 36 38 42 48 56 57 62 63 64 71 72 76 84 93 96 109 112 114 124 126 133 142 144 152 168 171 186 192 213 217 218 224 228 248 252 266 279 284 288 304 327 336 342 372 399 426 434 436 448 456 496 497 504 532 558 568 576 589 608 639 651 654 672 684 744 763 798 852 868 872 912 981 992 994 1008 1064 1116 1136 1178 1197 1216 1278 1302 1308 1344 1349 1368 1488 1491 1526 1596 1704 1736 1744 1767 1824 1953 1962 1984 1988 2016 2071 2128 2201 2232 2272 2289 2356 2394 2556 2604 2616 2698 2736 2976 2982 3052 3192 3379 3408 3472 3488 3534 3648 3906 3924 3976 4032 4047 4123 4142 4256 4402 4464 4473 4544 4578 4712 4788 5112 5208 5232 5301 5396 5472 5952 5964 6104 6213 6384 6603 6758 6816 6867 6944 6976 7068 7739 7812 7848 7952 8094 8246 8284 8512 8804 8928 8946 9156 9424 9443 9576 10137 10224 10416 10464 10602 10792 10944 11928 12141 12208 12369 12426 12768 13206 13516 13632 13734 13888 14136 14497 15407 15478 15624 15696 15904 16188 16492 16568 17608 17856 17892 18312 18639 18848 18886 19152 19809 20274 20448 20832 20928 21204 21584 23217 23653 23856 24282 24416 24738 24852 25536 26412 27032 27468 28272 28329 28994 30411 30814 30956 31248 31392 31808 32376 32984 33136 35216 35784 36624 37107 37278 37696 37772 38304 39618 40548 40896 41664 41819 42408 43168 43491 46221 46434 47306 47712 48564 48832 49476 49704 52824 54064 54173 54936 56544 56658 57988 60822 61628 61912 62496 62784 64201 64752 65968 66272 69651 70432 70959 71568 73248 74214 74556 75544 76608 79236 81096 83638 84816 84987 86336 86982 92442 92868 94612 95424 97128 98952 99408 105648 108128 108346 109872 113088 113316 115976 121644 123256 123824 124992 125457 128402 129504 130473 131936 132544 138663 139302 140864 141918 143136 146496 147041 148428 149112 151088 158472 162192 162519 167276 169632 169974 173964 184884 185736 189224 192603 194256 197904 198816 211296 212877 216256 216692 219744 226632 231952 239909 243288 246512 247648 250914 256804 259008 260946 263872 277326 278604 283836 286272 292733 294082 296856 298224 302176 316944 324384 325038 334552 339264 339948 347928 369768 371472 376371 378448 385206 388512 395808 397632 422592 425754 433384 439488 441123 449407 453264 463904 479818 486576 487557 493024 495296 501828 513608 521892 554652 557208 567672 577809 585466 588164 593712 596448 604352 633888 648768 650076 669104 679896 695856 719727 739536 742944 752742 756896 770412 777024 791616 851508 866768 878199 882246 898814 906528 927808 959636 973152 975114 986048 1003656 1027216 1029287 1043784 1109304 1114416 1135344 1155618 1170932 1176328 1187424 1192896 1267776 1300152 1323369 1338208 1348221 1359792 1391712 1439454 1479072 1485888 1505484 1513792 1540824 1679363 1703016 1733536 1756398 1764492 1797628 1813056 1919272 1946304 1950228 2007312 2054432 2058574 2087568 2159181 2218608 2228832 2270688 2311236 2341864 2352656 2374848 2600304 2634597 2646738 2676416 2696442 2719584 2783424 2878908 2958144 3010968 3081648 3087861 3358726 3406032 3467072 3512796 3528984 3595256 3838544 3900456 4014624 4044663 4108864 4117148 4175136 4318362 4437216 4457664 4541376 4558271 4622472 4683728 4705312 5038089 5200608 5269194 5293476 5392884 5439168 5757816 6021936 6163296 6175722 6717452 6812064 7025592 7057968 7190512 7677088 7800912 8029248 8089326 8234296 8350272 8636724 8874432 9116542 9244944 9263583 9367456 9410624 10076178 10401216 10538388 10586952 10785768 11515632 12043872 12326592 12351444 13434904 13624128 13674813 14051184 14115936 14381024 15114267 15354176 15601824 16178652 16468592 17273448 18233084 18489888 18527166 18734912 20152356 21076776 21173904 21571536 23031264 24087744 24702888 26869808 27349626 28102368 28231872 28762048 30228534 31203648 31907897 32357304 32937184 34546896 36466168 36979776 37054332 40304712 41024439 42153552 42347808 43143072 46062528 49405776 53739616 54699252 56204736 60457068 63815794 64714608 65874368 69093792 72932336 74108664 80609424 82048878 84307104 84695616 86286144 95723691 98811552 107479232 109398504 120914136 127631588 129429216 138187584 145864672 148217328 161218848 164097756 168614208 191447382 197623104 218797008 241828272 255263176 258858432 287171073 291729344 296434656 322437696 328195512 382894764 437594016 483656544 510526352 574342146 592869312 656391024 765789528 875188032 967313088 1021052704 1148684292 1312782048 1531579056 2042105408 2297368584 2625564096 3063158112 4594737168 6126316224 9189474336 18378948672
• Sum of all divisors σ(n): 66948710400
• Sum of proper divisors (its aliquot sum) s(n): 48569761728
• 18378948672 is an abundant number, because the sum of its proper divisors (48569761728) is greater than itself. Its abundance is 30190813056

Bases of 18378948672

• Binary: 10001000111011110001000000001000000₂
• Hexadecimal: 0x447788040
• Base-36: 8FYCNK0

Squares and roots of 18378948672

• 18378948672 squared (18378948672²) is 337785754288010563584
• 18378948672 cubed (18378948672³) is 6208147040192150053104128360448
• The square root of 18378948672 is 135568.9812309585
• The cube root of 18378948672 is 2639.0050520741

Scales and comparisons

• 18,378,948,672 seconds is equal to 584 years, 20 weeks, 3 days, 7 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,378,948,672 would take you about one thousand, one hundred sixty-eight 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 18378948672 cubic inches would be around 219.9 feet tall.

Recreational maths with 18378948672

• 18378948672 backwards is 27684987381
• 18378948672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18378948672's digits is 63
• More coming soon!