128688713712

Names of 128688713712

• Cardinal: 128688713712 can be written as One hundred twenty-eight billion, six hundred eighty-eight million, seven hundred thirteen thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 1.28688713712 × 10¹¹

Factors of 128688713712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 78

Divisors of 128688713712

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 34 36 39 43 48 51 52 54 68 72 78 81 86 102 104 108 117 129 136 144 153 156 162 172 204 208 216 221 234 243 258 272 306 312 324 344 351 387 408 432 442 459 468 486 516 559 612 624 648 663 688 702 729 731 774 816 884 918 936 972 1032 1053 1118 1161 1224 1296 1326 1377 1404 1458 1462 1548 1677 1768 1836 1849 1872 1944 1989 2064 2106 2187 2193 2236 2322 2448 2652 2754 2808 2916 2924 3096 3159 3354 3483 3536 3672 3698 3888 3978 4131 4212 4374 4386 4472 4644 5031 5304 5508 5547 5616 5832 5848 5967 6192 6318 6561 6579 6708 6966 7344 7396 7956 8262 8424 8748 8772 8944 9288 9477 9503 10062 10449 10608 11016 11094 11664 11696 11934 12393 12636 13122 13158 13416 13932 14792 15093 15912 16524 16641 16848 17496 17544 17901 18576 18954 19006 19683 19737 20124 20898 22032 22188 23868 24037 24786 25272 26244 26316 26832 27864 28431 28509 29584 30186 31347 31433 31824 33048 33282 34992 35088 35802 37179 37908 38012 39366 39474 40248 41796 44376 45279 47736 48074 49572 49923 50544 52488 52632 53703 55728 56862 57018 59211 60372 62694 62866 66096 66564 71604 72111 74358 75816 76024 78732 78948 80496 83592 85293 85527 88752 90558 94041 94299 95472 96148 99144 99846 104976 105264 107406 111537 113724 114036 118422 120744 125388 125732 133128 135837 143208 144222 148716 149769 151632 152048 157464 157896 161109 167184 170586 171054 177633 181116 188082 188598 192296 198288 199692 214812 216333 223074 227448 228072 236844 241488 250776 251464 255879 256581 266256 271674 282123 282897 286416 288444 297432 299538 314928 315792 322218 334611 341172 342108 355266 362232 376164 377196 384592 399384 407511 408629 429624 432666 446148 449307 454896 456144 473688 483327 501552 502928 511758 513162 532899 543348 564246 565794 576888 594864 599076 644436 648999 669222 682344 684216 710532 724464 752328 754392 769743 798768 815022 817258 846369 848691 859248 865332 892296 898614 947376 966654 1023516 1026324 1065798 1086696 1128492 1131588 1153776 1198152 1222533 1225887 1288872 1297998 1338444 1347921 1364688 1368432 1421064 1449981 1504656 1508784 1539486 1598697 1630044 1634516 1692738 1697382 1730664 1784592 1797228 1933308 1946997 2047032 2052648 2131596 2173392 2256984 2263176 2309229 2396304 2445066 2451774 2546073 2577744 2595996 2676888 2695842 2842128 2899962 3078972 3197394 3260088 3269032 3385476 3394764 3461328 3594456 3667599 3677661 3866616 3893994 4043763 4094064 4105296 4263192 4349943 4513968 4526352 4618458 4796091 4890132 4903548 5092146 5191992 5353776 5391684 5799924 5840991 6157944 6394788 6520176 6538064 6770952 6789528 6927687 7188912 7335198 7355322 7638219 7733232 7787988 8087526 8526384 8699886 9236916 9592182 9780264 9807096 10184292 10383984 10783368 11002797 11032983 11599848 11681982 12131289 12315888 12789576 13541904 13579056 13855374 14388273 14670396 14710644 15276438 15575976 16175052 17399772 17522973 18473832 19184364 19560528 19614192 20368584 20783061 21566736 22005594 22065966 22914657 23199696 23363964 24262578 25579152 27710748 28776546 29340792 29421288 30552876 31151952 32350104 33098949 34799544 35045946 36393867 36947664 38368728 40737168 41566122 44011188 44131932 45829314 46727928 48525156 52568919 55421496 57553092 58681584 58842576 61105752 62349183 64700208 66197898 68743971 69599088 70091892 72787734 76737456 83132244 88022376 88263864 91658628 93455856 97050312 99296847 105137838 110842992 115106184 122211504 124698366 132395796 137487942 140183784 145575468 157706757 166264488 176044752 176527728 183317256 187047549 194100624 198593694 206231913 210275676 230212368 249396732 264791592 274975884 280367568 291150936 297890541 315413514 332528976 366634512 374095098 397187388 412463826 420551352 473120271 498793464 529583184 549951768 582301872 595781082 618695739 630827028 748190196 794374776 824927652 841102704 893671623 946240542 997586928 1099903536 1191562164 1237391478 1261654056 1496380392 1588749552 1649855304 1787343246 1892481084 2383124328 2474782956 2523308112 2681014869 2992760784 3299710608 3574686492 3784962168 4766248656 4949565912 5362029738 7149372984 7569924336 8043044607 9899131824 10724059476 14298745968 16086089214 21448118952 32172178428 42896237904 64344356856 128688713712
• Sum of all divisors σ(n): 436604336784
• Sum of proper divisors (its aliquot sum) s(n): 307915623072
• 128688713712 is an abundant number, because the sum of its proper divisors (307915623072) is greater than itself. Its abundance is 179226909360

Bases of 128688713712

• Binary: 1110111110110011100011110111111110000₂
• Hexadecimal: 0x1DF671EFF0
• Base-36: 1N49XR00

Squares and roots of 128688713712

• 128688713712 squared (128688713712²) is 16560785036849096818944
• 128688713712 cubed (128688713712³) is 2131186124453046791078854314160128
• The square root of 128688713712 is 358732.0918345611
• The cube root of 128688713712 is 5048.7068376209

Scales and comparisons

• 128,688,713,712 seconds is equal to 4,091 years, 46 weeks, 6 days, 16 hours, 55 minutes, 12 seconds.
• To count from 1 to 128,688,713,712 would take you about eight thousand, one hundred eighty-three 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 128688713712 cubic inches would be around 420.7 feet tall.

Recreational maths with 128688713712

• 128688713712 backwards is 217317886821
• 128688713712 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128688713712's digits is 54
• More coming soon!