121991481108

Names of 121991481108

• Cardinal: 121991481108 can be written as One hundred twenty-one billion, nine hundred ninety-one million, four hundred eighty-one thousand, one hundred eight.

Scientific notation

• Scientific notation: 1.21991481108 × 10¹¹

Factors of 121991481108

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 734

Divisors of 121991481108

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 31 36 42 54 62 63 81 84 93 108 124 126 162 186 189 217 243 252 279 324 372 378 434 486 558 567 651 691 729 756 837 868 961 972 1116 1134 1302 1382 1458 1674 1701 1922 1953 2073 2187 2268 2511 2604 2764 2883 2916 3348 3402 3844 3906 4146 4374 4837 5022 5103 5766 5859 6219 6561 6727 6804 7533 7812 8292 8649 8748 9674 10044 10206 11532 11718 12438 13122 13454 14511 15066 15309 17298 17577 18657 19348 20181 20412 21421 22599 23436 24876 25947 26244 26908 29022 30132 30618 34596 35154 37314 40362 42842 43533 45198 45927 51894 52731 55971 58044 60543 61236 64263 67797 70308 74628 77841 80724 85684 87066 90396 91854 103788 105462 111942 121086 128526 130599 135594 149947 155682 158193 167913 174132 181629 183708 192789 203391 210924 223884 233523 242172 257052 261198 271188 299894 311364 316386 335826 363258 385578 391797 406782 449841 467046 474579 503739 522396 544887 578367 599788 632772 664051 671652 700569 726516 771156 783594 813564 899682 934092 949158 1007478 1089774 1156734 1175391 1328102 1349523 1401138 1423737 1511217 1567188 1634661 1735101 1799364 1898316 1992153 2014956 2101707 2179548 2313468 2350782 2656204 2699046 2802276 2847474 3022434 3269322 3470202 3526173 3984306 4048569 4203414 4533651 4648357 4701564 4903983 5205303 5398092 5694948 5976459 6044868 6305121 6538644 6940404 7052346 7968612 8097138 8406828 9067302 9296714 9807966 10410606 10578519 11952918 12145707 12610242 13945071 14104692 14711949 15615909 16194276 17929377 18134604 18593428 19615932 20821212 21157038 23905836 24291414 25220484 27890142 29423898 31231818 31735557 35858754 36437121 41835213 42314076 44135847 46847727 48582828 53788131 55780284 58847796 62463636 63471114 71717508 72874242 83670426 88271694 93695454 107576262 109311363 125505639 126942228 140543181 145748484 161364393 167340852 176543388 187390908 215152524 218622726 251011278 281086362 322728786 327934089 376516917 437245452 484093179 502022556 562172724 645457572 655868178 753033834 968186358 983802267 1129550751 1311736356 1452279537 1506067668 1936372716 1967604534 2259101502 2904559074 3388652253 3935209068 4356838611 4518203004 5809118148 6777304506 8713677222 10165956759 13554609012 17427354444 20331913518 30497870277 40663827036 60995740554 121991481108
• Sum of all divisors σ(n): 378688922976
• Sum of proper divisors (its aliquot sum) s(n): 256697441868
• 121991481108 is an abundant number, because the sum of its proper divisors (256697441868) is greater than itself. Its abundance is 134705960760

Bases of 121991481108

• Binary: 1110001100111010000100100011100010100₂
• Hexadecimal: 0x1C67424714
• Base-36: 1K1IKT90

Squares and roots of 121991481108

• 121991481108 squared (121991481108²) is 14881921462923520907664
• 121991481108 cubed (121991481108³) is 1815467640994974423256135868411712
• The square root of 121991481108 is 349272.7889601479
• The cube root of 121991481108 is 4959.5602214249

Scales and comparisons

• 121,991,481,108 seconds is equal to 3,878 years, 49 weeks, 3 days, 10 hours, 31 minutes, 48 seconds.
• To count from 1 to 121,991,481,108 would take you about seven thousand, seven hundred fifty-seven 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 121991481108 cubic inches would be around 413.3 feet tall.

Recreational maths with 121991481108

• 121991481108 backwards is 801184199121
• The number of decimal digits it has is: 12
• The sum of 121991481108's digits is 45
• More coming soon!