991983871968

Names of 991983871968

• Cardinal: 991983871968 can be written as Nine hundred ninety-one billion, nine hundred eighty-three million, eight hundred seventy-one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 9.91983871968 × 10¹¹

Factors of 991983871968

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 762

Divisors of 991983871968

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 12 16 19 24 32 38 48 57 61 76 96 113 114 122 152 183 226 228 244 257 304 307 339 366 452 456 488 514 608 614 678 732 771 904 912 921 976 1028 1159 1228 1356 1464 1542 1808 1824 1842 1952 2056 2147 2318 2456 2712 2928 3084 3477 3616 3684 4112 4294 4636 4883 4912 5424 5833 5856 6168 6441 6893 6954 7368 8224 8588 9272 9766 9824 10848 11666 12336 12882 13786 13908 14649 14736 15677 17176 17499 18544 18727 19532 20679 23332 24672 25764 27572 27816 29041 29298 29472 31354 34352 34691 34998 37088 37454 39064 41358 46664 47031 51528 55144 55632 56181 58082 58596 62708 68704 69382 69996 74908 78128 78899 82716 87123 93328 94062 103056 104073 110288 111264 112362 116164 117192 125416 130967 138764 139992 149816 156256 157798 165432 174246 186656 188124 206112 208146 220576 224724 232328 234384 236697 250832 261934 277528 279984 297863 299632 315596 330864 348492 355813 376248 392901 416292 449448 464656 468768 473394 501664 523868 551779 555056 559968 595726 599264 631192 659129 661728 696984 711626 752496 785802 832584 893589 898896 929312 946788 1047736 1067439 1103558 1110112 1191452 1262384 1318258 1393968 1423252 1499081 1504992 1571604 1655337 1665168 1771501 1787178 1797792 1893576 1977387 2095472 2116151 2134878 2207116 2382904 2524768 2636516 2787936 2846504 2998162 3143208 3310674 3330336 3543002 3574356 3787152 3954774 4190944 4232302 4269756 4414232 4497243 4765808 4812839 5273032 5314503 5693008 5996324 6286416 6348453 6621348 7086004 7148712 7574304 7909548 8464604 8539512 8828464 8915587 8994486 9531616 9625678 10546064 10629006 11386016 11992648 12572832 12696906 13242696 14172008 14297424 14438517 15819096 16929208 17079024 17656928 17831174 17988972 19251356 21092128 21258012 23985296 25393812 26485392 26746761 28344016 28594848 28877034 31638192 33658519 33858416 34158048 35662348 35977944 38502712 40206869 42516024 47970592 50787624 52970784 53493522 56688032 57754068 63276384 67317038 67716832 71324696 71955888 77005424 80413738 85032048 91443941 100975557 101575248 106987044 115508136 120620607 134634076 142649392 143911776 154010848 160827476 169396153 170064096 182887882 201951114 203150496 213974088 231016272 241241214 269268152 274331823 285298784 321654952 338792306 365775764 403902228 427948176 462032544 482482428 508188459 538536304 543850807 548663646 643309904 677584612 731551528 807804456 855896352 964964856 1016376918 1077072608 1087701614 1097327292 1286619808 1355169224 1463103056 1615608912 1631552421 1929929712 2032753836 2175403228 2194654584 2710338448 2926206112 3231217824 3263104842 3859859424 4065507672 4350806456 4389309168 5420676896 6526209684 8131015344 8701612912 8778618336 10333165333 13052419368 16262030688 17403225824 20666330666 26104838736 30999495999 41332661332 52209677472 61998991998 82665322664 123997983996 165330645328 247995967992 330661290656 495991935984 991983871968
• Sum of all divisors σ(n): 2830723822080
• Sum of proper divisors (its aliquot sum) s(n): 1838739950112
• 991983871968 is an abundant number, because the sum of its proper divisors (1838739950112) is greater than itself. Its abundance is 846756078144

Bases of 991983871968

• Binary: 1110011011110110110110001010011111100000₂
• Hexadecimal: 0xE6F6D8A7E0
• Base-36: CNPLL2AO

Squares and roots of 991983871968

• 991983871968 squared (991983871968²) is 984032002244625416193024
• 991983871968 cubed (991983871968³) is 976143875727047187472939433590751232
• The square root of 991983871968 is 995983.8713392903
• The cube root of 991983871968 is 9973.2078554319

Scales and comparisons

• 991,983,871,968 seconds is equal to 31,542 years, 6 days, 19 hours, 32 minutes, 48 seconds.
• To count from 1 to 991,983,871,968 would take you about sixty-three thousand and eighty-four 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 991983871968 cubic inches would be around 831.1 feet tall.

Recreational maths with 991983871968

• 991983871968 backwards is 869178389199
• The number of decimal digits it has is: 12
• The sum of 991983871968's digits is 78
• More coming soon!