21001675968

Names of 21001675968

• Cardinal: 21001675968 can be written as Twenty-one billion, one million, six hundred seventy-five thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1001675968 × 10¹⁰

Factors of 21001675968

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 79

Divisors of 21001675968

• Number of divisors d(n): 1008
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 17 18 21 24 26 28 32 34 36 37 39 42 48 49 51 52 56 63 64 68 72 74 78 84 91 96 98 102 104 111 112 117 119 126 136 144 147 148 153 156 168 169 182 192 196 204 208 221 222 224 234 238 252 259 272 273 288 294 296 306 312 333 336 338 343 357 364 392 408 416 441 442 444 448 468 476 481 504 507 518 544 546 576 588 592 612 624 629 637 663 666 672 676 686 714 728 777 784 816 819 832 833 882 884 888 936 952 962 1008 1014 1029 1036 1071 1088 1092 1176 1183 1184 1224 1248 1258 1274 1326 1332 1344 1352 1372 1428 1443 1456 1521 1547 1554 1568 1632 1638 1666 1764 1768 1776 1813 1872 1887 1904 1911 1924 1989 2016 2028 2058 2072 2142 2184 2331 2352 2366 2368 2448 2496 2499 2516 2548 2652 2664 2704 2744 2856 2873 2886 2912 3042 3087 3094 3108 3136 3264 3276 3332 3367 3528 3536 3549 3552 3626 3744 3774 3808 3822 3848 3978 4032 4056 4116 4144 4284 4329 4368 4403 4459 4641 4662 4704 4732 4896 4998 5032 5096 5304 5328 5408 5439 5488 5661 5712 5733 5746 5772 5824 5831 6084 6174 6188 6216 6253 6552 6664 6734 7056 7072 7098 7104 7252 7488 7497 7548 7616 7644 7696 7956 8112 8177 8232 8281 8288 8568 8619 8658 8736 8806 8918 9282 9324 9408 9464 9792 9996 10064 10101 10192 10608 10647 10656 10816 10829 10878 10976 11322 11424 11466 11492 11544 11662 12168 12348 12376 12432 12506 12691 13104 13209 13328 13377 13468 13923 14112 14144 14196 14504 14994 15096 15288 15392 15912 16224 16317 16354 16464 16562 16576 17136 17238 17316 17472 17493 17612 17836 18564 18648 18759 18928 19992 20111 20128 20202 20384 21216 21294 21312 21658 21756 21952 22644 22848 22932 22984 23088 23324 23569 24336 24531 24696 24752 24843 24864 25012 25382 25857 26208 26418 26656 26754 26936 27846 28224 28392 29008 29988 30192 30303 30576 30784 30821 31824 32448 32487 32634 32708 32928 33124 34272 34476 34632 34986 35224 35672 37128 37296 37518 37856 38073 39627 39984 40131 40222 40256 40404 40768 42432 42588 43316 43512 43771 45288 45864 45968 46176 46648 47138 48672 49062 49392 49504 49686 49728 50024 50764 51714 52416 52479 52836 53312 53508 53872 55692 56277 56784 57239 57967 58016 59976 60333 60384 60606 61152 61642 63648 64974 65268 65416 65856 66248 68544 68952 69264 69972 70448 70707 71344 73593 74256 74529 74592 75036 75712 75803 76146 79254 79968 80262 80444 80808 85176 86632 87024 87542 90576 91728 91936 92352 92463 93296 94276 97344 97461 98124 98784 99008 99372 100048 101528 103428 104958 105672 106301 107016 107744 111384 112554 113568 114219 114478 115934 116032 119952 120666 120768 121212 122304 123284 127296 129948 130536 130832 131313 132496 137904 138528 139944 140777 140896 141414 142688 147186 148512 149058 149184 150072 151606 152292 158508 159936 160524 160888 161616 164983 170352 171717 173264 173901 174048 175084 180999 181152 183456 183872 184926 186592 188552 194922 196248 197568 198744 200096 203056 206856 209916 211344 212121 212602 214032 215488 215747 222768 225108 227136 227409 228438 228956 231868 239904 241332 242424 246568 259896 261072 261664 262626 264992 275808 277056 277389 279888 281554 281792 282828 285376 294372 297024 298116 300144 303212 304584 306397 317016 318903 321048 321776 323232 329966 340704 343434 346528 347802 348096 350168 361998 362304 366912 369852 373184 377104 389844 392496 393939 397488 400192 400673 406112 413712 419832 422331 422688 424242 425204 428064 431494 445536 450216 454818 456876 457912 463736 479808 482664 484848 493136 494949 515151 519792 521703 522144 523328 525252 529984 551616 554778 559776 563108 565656 588744 596232 600288 606424 609168 612794 634032 637806 642096 643552 646464 647241 659932 681408 682227 686868 693056 695604 700336 723996 739704 744107 754208 779688 784992 787878 794976 801346 812224 827424 839664 844662 845376 848484 850408 856128 862988 891072 900432 909636 913752 915824 919191 927472 956709 965328 969696 985439 986272 989898 1030302 1039584 1043406 1044288 1050504 1109556 1119552 1126216 1131312 1177488 1192464 1200576 1202019 1212848 1218336 1225588 1266993 1268064 1275612 1284192 1287104 1294482 1319864 1364454 1373736 1391208 1400672 1447992 1479408 1484847 1488214 1508416 1559376 1569984 1575756 1589952 1602692 1654848 1679328 1689324 1696968 1700816 1725976 1800864 1819272 1827504 1831648 1838382 1854944 1913418 1930656 1939392 1941723 1970878 1972544 1979796 2060604 2079168 2086812 2101008 2144779 2219112 2232321 2252432 2262624 2354976 2384928 2404038 2425696 2436672 2451176 2533986 2536128 2551224 2568384 2588964 2639728 2728908 2747472 2757573 2782416 2801344 2804711 2895984 2956317 2958816 2969694 2976428 3118752 3151512 3205384 3358656 3378648 3393936 3401632 3451952 3601728 3606057 3638544 3655008 3663296 3676764 3709888 3826836 3861312 3883446 3941756 3959592 4121208 4173624 4202016 4289558 4438224 4464642 4504864 4525248 4709952 4769856 4808076 4851392 4902352 5067972 5102448 5177928 5208749 5279456 5457816 5494944 5515146 5564832 5609422 5791968 5912634 5917632 5939388 5952856 6237504 6303024 6410768 6434337 6696963 6757296 6787872 6803264 6903904 7212114 7277088 7310016 7353528 7653672 7766892 7883512 7919184 8242416 8347248 8404032 8414133 8579116 8868951 8876448 8929284 9009728 9616152 9804704 10135944 10204896 10355856 10417498 10558912 10915632 10989888 11030292 11129664 11218844 11583936 11825268 11878776 11905712 12606048 12821536 12868674 13393926 13514592 13575744 13807808 14424228 14554176 14707056 15307344 15533784 15626247 15767024 15838368 16484832 16694496 16828266 17158232 17737902 17752896 17858568 19232304 19303011 19609408 20271888 20409792 20711712 20834996 21831264 22060584 22437688 23650536 23757552 23811424 25212096 25242399 25643072 25737348 26787852 27029184 28848456 29414112 30614688 31067568 31252494 31534048 31676736 32969664 33388992 33656532 34316464 35475804 35717136 36461243 38464608 38606022 40543776 41423424 41669992 43662528 44121168 44875376 46878741 47301072 47515104 47622848 50484798 51474696 53575704 57696912 58828224 61229376 62135136 62504988 63068096 67313064 68632928 70951608 71434272 72922486 76929216 77212044 81087552 83339984 88242336 89750752 93757482 94602144 95030208 100969596 102949392 107151408 109383729 115393824 124270272 125009976 134626128 137265856 141903216 142868544 145844972 154424088 166679968 176484672 179501504 187514964 189204288 201939192 205898784 214302816 218767458 230787648 250019952 269252256 283806432 291689944 308848176 328151187 333359936 375029928 403878384 411797568 428605632 437534916 500039904 538504512 567612864 583379888 617696352 656302374 750059856 807756768 875069832 1000079808 1166759776 1235392704 1312604748 1500119712 1615513536 1750139664 2333519552 2625209496 3000239424 3500279328 5250418992 7000558656 10500837984 21001675968
• Sum of all divisors σ(n): 82663588800
• Sum of proper divisors (its aliquot sum) s(n): 61661912832
• 21001675968 is an abundant number, because the sum of its proper divisors (61661912832) is greater than itself. Its abundance is 40660236864

Bases of 21001675968

• Binary: 10011100011110011000010010011000000₂
• Hexadecimal: 0x4E3CC24C0
• Base-36: 9NBUSW0

Squares and roots of 21001675968

• 21001675968 squared (21001675968²) is 441070393464868737024
• 21001675968 cubed (21001675968³) is 9263217482627438006631452639232
• The square root of 21001675968 is 144919.5499855005
• The cube root of 21001675968 is 2758.9975691689

Scales and comparisons

• 21,001,675,968 seconds is equal to 667 years, 40 weeks, 6 days, 22 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,001,675,968 would take you about one thousand, three hundred thirty-five 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 21001675968 cubic inches would be around 229.9 feet tall.

Recreational maths with 21001675968

• 21001675968 backwards is 86957610012
• The number of decimal digits it has is: 11
• The sum of 21001675968's digits is 45
• More coming soon!