991423788883556

Names of 991423788883556

• Cardinal: 991423788883556 can be written as Nine hundred ninety-one trillion, four hundred twenty-three billion, seven hundred eighty-eight million, eight hundred eighty-three thousand, five hundred fifty-six.

Scientific notation

• Scientific notation: 9.91423788883556 × 10¹⁴

Factors of 991423788883556

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 542

Divisors of 991423788883556

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 7 14 19 23 28 38 46 49 76 92 98 133 161 196 266 322 343 361 437 491 532 644 686 722 874 931 982 1127 1372 1444 1748 1862 1964 2254 2527 3059 3437 3724 4508 5054 6118 6517 6859 6874 7889 8303 9329 10108 11293 12236 13034 13718 13748 15778 16606 17689 18658 21413 22586 24059 26068 27436 31556 33212 35378 37316 42826 45172 48013 48118 58121 65303 70756 79051 85652 96026 96236 116242 123823 130321 130606 149891 157757 158102 168413 177251 192052 214567 232484 241081 247646 260642 261212 299782 315514 316204 336091 336826 354502 406847 429134 457121 482162 495292 521284 553357 599564 631028 672182 673652 709004 813694 858268 912247 914242 964324 1104299 1106714 1240757 1344364 1501969 1627388 1687567 1824494 1828484 2208598 2213428 2352637 2481514 2847929 2997383 3003938 3199847 3367769 3375134 3648988 3873499 4076773 4417196 4580539 4705274 4963028 5544863 5695858 5994766 6007876 6385729 6399694 6735538 6750268 7730093 7746998 8153546 8685299 9161078 9410548 10513783 11089726 11391716 11812969 11989532 12771458 12799388 13471076 15460186 15493996 16307092 17370598 18322156 20981681 21027566 22179452 23574383 23625938 25542916 28537411 30920372 32063773 34741196 38814041 41963362 42055132 44700103 47148766 47251876 54110651 57074822 60797093 63987611 64127546 73596481 77458687 77628082 82690783 83926724 87030241 89400206 94297532 105352397 108221302 114149644 121594186 127975222 128255092 146871767 147192962 154917374 155256164 165020681 165381566 174060482 178800412 199761877 210704794 216442604 224446411 243188372 255950444 271698287 293743534 294385924 309834748 330041362 330763132 348120964 399523754 421409588 447913277 448892822 542210809 543396574 587487068 609211687 660082724 737466779 799047508 895826554 897785644 1028102369 1084421618 1086793148 1155144767 1218423374 1398333139 1471715053 1474933558 1571124877 1653574579 1791653108 1901888009 2001695543 2056204738 2168843236 2310289534 2436846748 2796666278 2943430106 2949867116 3135392939 3142249754 3307149158 3795475663 3803776018 4003391086 4112409476 4264481809 4620579068 5162267453 5593332556 5886860212 6270785878 6284499508 6614298316 7590951326 7607552036 8006782172 8528963618 10302005371 10324534906 11575022053 12541571756 14011868801 15181902652 17057927236 20604010742 20649069812 21947750573 23150044106 26568329641 28023737602 29851372663 31417917001 36135872171 38032215317 41208021484 43895501146 46300088212 53136659282 56047475204 59702745326 62835834002 72114037597 72271744342 76064430634 81025154371 87791002292 98083081607 106273318564 119405490652 125671668004 144228075194 144543488684 152128861268 162050308742 196166163214 219925419007 266225507219 288456150388 324100617484 392332326428 439850838014 504798263179 532451014438 567176080597 686581571249 722612091023 879701676028 1009596526358 1064902028876 1134352161194 1373163142498 1445224182046 1539477933049 1863578550533 2019193052716 2268704322388 2746326284996 2890448364092 3078955866098 3727157101066 5058284637161 6157911732196 7454314202132 10116569274322 10776345531343 13045049853731 20233138548644 21552691062686 26090099707462 35407992460127 43105382125372 52180199414924 70815984920254 141631969840508 247855947220889 495711894441778 991423788883556
• Sum of all divisors σ(n): 2233124776041600
• Sum of proper divisors (its aliquot sum) s(n): 1241700987158044
• 991423788883556 is an abundant number, because the sum of its proper divisors (1241700987158044) is greater than itself. Its abundance is 250277198274488

Bases of 991423788883556

• Binary: 11100001011011000111010110110000100001111001100100₂
• Hexadecimal: 0x385B1D6C21E64
• Base-36: 9RFHSU3IHW

Squares and roots of 991423788883556

• 991423788883556 squared (991423788883556²) is 982921129164225817640927205136
• 991423788883556 cubed (991423788883556³) is 974491390049699895412791980079733252829143616
• The square root of 991423788883556 is 31486882.8067110511
• The cube root of 991423788883556 is 99713.3051421895

Scales and comparisons

• 991,423,788,883,556 seconds is equal to 31,524,209 years, 42 weeks, 1 day, 8 hours, 5 minutes, 56 seconds.
• To count from 1 to 991,423,788,883,556 would take you about seventy-eight million, eight hundred ten thousand, five hundred twenty-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 991423788883556 cubic inches would be around 8309.4 feet tall.

Recreational maths with 991423788883556

• 991423788883556 backwards is 655388887324199
• The number of decimal digits it has is: 15
• The sum of 991423788883556's digits is 86
• More coming soon!