1644729157728

Names of 1644729157728

• Cardinal: 1644729157728 can be written as One trillion, six hundred forty-four billion, seven hundred twenty-nine million, one hundred fifty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.644729157728 × 10¹²

Factors of 1644729157728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 151

Divisors of 1644729157728

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 19 24 32 34 36 38 43 48 51 57 67 68 72 76 86 96 102 114 129 134 136 144 152 153 171 172 201 204 228 258 268 272 288 289 304 306 323 342 344 361 387 402 408 456 516 536 544 578 603 608 612 646 684 688 722 731 774 804 816 817 867 912 969 1032 1072 1083 1139 1156 1206 1224 1273 1292 1368 1376 1444 1462 1548 1608 1632 1634 1734 1824 1938 2064 2144 2166 2193 2278 2312 2412 2448 2451 2546 2584 2601 2736 2881 2888 2907 2924 3096 3216 3249 3268 3417 3468 3819 3876 4128 4332 4386 4556 4624 4824 4896 4902 5092 5168 5202 5472 5491 5762 5776 5814 5848 6137 6192 6432 6498 6536 6579 6834 6859 6936 7353 7638 7752 8643 8664 8772 9112 9248 9648 9804 10184 10251 10336 10404 10982 11457 11524 11552 11628 11696 12274 12384 12427 12996 13072 13158 13668 13718 13872 13889 14706 15276 15504 15523 16473 17286 17328 17544 18224 18411 19296 19363 19608 20368 20502 20577 20808 21641 21964 22914 23048 23256 23392 24187 24548 24854 25929 25992 26144 26316 27336 27436 27744 27778 29412 30552 31008 31046 32946 34572 34656 35088 36448 36822 37281 38726 39216 40736 41004 41154 41616 41667 43282 43928 45828 46096 46512 46569 48374 48977 49096 49419 49708 51858 51984 52632 54672 54739 54872 55233 55556 58089 58824 61104 61731 62092 64923 65892 69144 70176 72561 73644 74562 77452 78432 82008 82308 83232 83334 86564 87856 91656 92192 93024 93138 96748 97954 98192 98838 99416 103716 103968 104329 105264 109344 109478 109744 110466 111112 111843 116178 116603 117648 122208 123462 124184 125001 129846 131784 138288 139707 145122 146931 147288 149124 154904 164016 164217 164616 166668 173128 174267 175712 183312 186276 193496 194769 195908 196384 197676 198832 207432 208658 210528 217683 218956 219488 220932 222224 223686 232356 233206 235296 236113 246924 248368 250002 259692 263568 263891 276576 279414 290244 293862 294576 294937 298248 309808 312987 328032 328434 329232 333336 346256 348534 349809 366624 367897 372552 386992 389538 391816 395352 397664 411179 414864 417316 435366 437912 440793 441864 444448 447372 459553 464712 466412 472226 492651 493848 496736 500004 519384 527136 527782 558828 580488 587724 589152 589874 596496 619616 625974 656868 658464 666672 692512 697068 699618 708339 735794 745104 773984 779076 783632 790704 791673 822358 829728 832609 834632 870732 875824 881586 883728 884811 894744 919106 929424 930563 932824 938961 944452 985302 987696 1000008 1038768 1040041 1049427 1055564 1103691 1117656 1160976 1175448 1179748 1192992 1233537 1251948 1313736 1333344 1378659 1394136 1399236 1416678 1471588 1490208 1558152 1567264 1581408 1583346 1644716 1665218 1669264 1741464 1751648 1763172 1767456 1769622 1789488 1838212 1858848 1861126 1865648 1877922 1888904 1970604 1975392 1982251 2000016 2077536 2080082 2098854 2111128 2125017 2207382 2235312 2321952 2350896 2359496 2375019 2467074 2497827 2503896 2627472 2654433 2757318 2788272 2791689 2798472 2833356 2943176 3116304 3120123 3166692 3289432 3311073 3330436 3338528 3482928 3526344 3539244 3578976 3676424 3700611 3722252 3731296 3755844 3777808 3941208 3964502 4000032 4135977 4160164 4197708 4222256 4250034 4414764 4470624 4486147 4701792 4718992 4750038 4934148 4995654 5007792 5013929 5254944 5308866 5514636 5576544 5583378 5596944 5666712 5886352 5946753 6232608 6240246 6333384 6578864 6622146 6660872 6965856 6990043 7052688 7078488 7352848 7401222 7444504 7493481 7511688 7555616 7812401 7882416 7929004 8271954 8320328 8375067 8395416 8444512 8500068 8829528 8972294 9360369 9437984 9500076 9868296 9991308 10015584 10027858 10617732 11029272 11166756 11193888 11333424 11772704 11893506 12480492 12666768 13157728 13244292 13321744 13458441 13980086 14105376 14156976 14705696 14802444 14889008 14986962 15023376 15041787 15624802 15764832 15819571 15858008 16543908 16640656 16750134 16790832 17000136 17659056 17680697 17840259 17944588 18720738 19000152 19736592 19760779 19982616 20055716 20970129 21235464 22058544 22333512 22666848 23437203 23787012 24960984 25333536 26488584 26643488 26916882 27960172 28313952 29604888 29778016 29973924 30046752 30083574 31249604 31639142 31716016 33087816 33281312 33500268 33581664 34000272 35318112 35361394 35680518 35889176 37441476 38000304 39473184 39521558 39965232 40111432 40375323 41940258 42470928 44117088 44667024 45125361 46874406 47458713 47574024 49921968 52977168 53042091 53833764 55920344 59209776 59282337 59947848 60167148 62499208 62910387 63278284 63432032 66175632 67000536 68000544 70311609 70722788 71361036 71778352 74882952 76000608 79043116 79930464 80222864 80750646 83880516 84941856 85236793 89334048 90250722 93748812 94917426 95148048 99843936 105954336 106084182 107667528 111840688 118419552 118564674 119895696 120334296 124998416 125820774 126556568 132351264 132810817 134001072 140623218 141445576 142376139 142722072 143556704 149765904 158086232 159126273 160445728 161501292 167761032 170473586 177847011 180501444 187497624 189834852 190296096 212168364 215335056 223681376 237129348 239791392 240668592 249996832 251641548 253113136 255710379 265621634 268002144 281246436 282891152 284752278 285444144 299531808 300571849 316172464 318252546 323002584 335522064 335933243 340947172 355694022 361002888 374995248 379669704 398432451 424336728 430670112 474258696 481337184 503283096 506226272 511420758 531243268 562492872 565782304 569504556 570888288 601143698 632344928 636505092 646005168 671044128 671866486 681894344 711388044 722005776 749990496 759339408 767131137 796864902 848673456 901715547 948517392 1006566192 1007799729 1022841516 1062486536 1124985744 1139009112 1195297353 1202287396 1273010184 1292010336 1343732972 1363788688 1422776088 1444011552 1518678816 1534262274 1593729804 1697346912 1803431094 1897034784 2013132384 2015599458 2045683032 2124973072 2249971488 2278018224 2390594706 2404574792 2546020368 2687465944 2705146641 2727577376 2845552176 3023399187 3068524548 3187459608 3606862188 4031198916 4091366064 4249946144 4556036448 4781189412 4809149584 5092040736 5374931888 5410293282 5691104352 5710865131 6046798374 6137049096 6374919216 7213724376 8062397832 8182732128 9562378824 9618299168 10749863776 10820586564 11421730262 12093596748 12274098192 12749838432 14427448752 16124795664 17132595393 19124757648 21641173128 22843460524 24187193496 24548196384 28854897504 32249591328 34265190786 38249515296 43282346256 45686921048 48374386992 51397786179 68530381572 86564692512 91373842096 96748773984 102795572358 137060763144 182747684192 205591144716 274121526288 411182289432 548243052576 822364578864 1644729157728
• Sum of all divisors σ(n): 5446561760640
• Sum of proper divisors (its aliquot sum) s(n): 3801832602912
• 1644729157728 is an abundant number, because the sum of its proper divisors (3801832602912) is greater than itself. Its abundance is 2157103445184

Bases of 1644729157728

• Binary: 10111111011110001011111110100100001100000₂
• Hexadecimal: 0x17EF17F4860
• Base-36: KZKT9W80

Squares and roots of 1644729157728

• 1644729157728 squared (1644729157728²) is 2705134002280656302121984
• 1644729157728 cubed (1644729157728³) is 4449212769112437470856145843432292352
• The square root of 1644729157728 is 1282469.9441811493
• The cube root of 1644729157728 is 11804.0615094023

Scales and comparisons

• 1,644,729,157,728 seconds is equal to 52,297 years, 15 weeks, 4 days, 2 hours, 28 minutes, 48 seconds.
• To count from 1 to 1,644,729,157,728 would take you about one hundred thirty thousand, seven hundred forty-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 1644729157728 cubic inches would be around 983.7 feet tall.

Recreational maths with 1644729157728

• 1644729157728 backwards is 8277519274461
• The number of decimal digits it has is: 13
• The sum of 1644729157728's digits is 63
• More coming soon!