642356101920

Names of 642356101920

• Cardinal: 642356101920 can be written as Six hundred forty-two billion, three hundred fifty-six million, one hundred one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.4235610192 × 10¹¹

Factors of 642356101920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 403

Divisors of 642356101920

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 151 156 160 169 195 208 229 240 260 302 312 338 390 416 453 458 480 507 520 604 624 676 687 755 780 845 906 916 1014 1040 1145 1208 1248 1352 1374 1510 1560 1690 1812 1832 1963 2028 2080 2265 2290 2416 2535 2704 2748 2977 3020 3120 3380 3435 3624 3664 3926 4056 4530 4580 4832 5070 5408 5496 5889 5954 6040 6240 6760 6870 7248 7328 7852 8112 8931 9060 9160 9815 10140 10992 11778 11908 12080 13520 13740 14496 14885 15704 16224 17862 18120 18320 19630 20280 21984 23556 23816 24160 25519 27040 27480 29445 29770 31408 34579 35724 36240 36640 38701 39260 40560 44655 47112 47632 51038 52441 54960 58890 59540 62816 69158 71448 72480 76557 77402 78520 81120 89310 94224 95264 102076 103737 104882 109920 116103 117780 119080 127595 138316 142896 153114 154804 157040 157323 172895 178620 188448 193505 204152 207474 209764 232206 235560 238160 255190 262205 276632 285792 306228 309608 314080 314646 345790 357240 382785 387010 408304 414948 419528 449527 464412 471120 476320 510380 518685 524410 553264 580515 612456 619216 629292 681733 691580 714480 765570 774020 786615 816608 829896 839056 899054 928824 942240 1020760 1037370 1048820 1106528 1161030 1224912 1238432 1258584 1348581 1363466 1383160 1428960 1531140 1548040 1573230 1659792 1678112 1798108 1857648 2041520 2045199 2074740 2097640 2247635 2322060 2449824 2517168 2697162 2726932 2766320 3062280 3096080 3146460 3319584 3408665 3596216 3715296 4083040 4090398 4149480 4195280 4495270 4644120 5034336 5394324 5453864 5532640 5843851 6124560 6192160 6292920 6742905 6817330 7192432 7918591 8180796 8298960 8390560 8862529 8990540 9288240 10225995 10788648 10907728 11687702 12249120 12585840 13485810 13634660 14384864 15837182 16361592 16597920 17531553 17725058 17981080 18576480 20451990 21577296 21815456 23375404 23755773 25171680 26587587 26971620 27269320 29219255 31674364 32723184 35063106 35450116 35962160 39592955 40903980 43154592 44312645 46750808 47511546 53175174 53943240 54538640 58438510 63348728 65446368 70126212 70900232 71924320 79185910 81807960 87657765 88625290 93501616 95023092 102941683 106350348 107886480 109077280 116877020 118778865 126697456 132937935 140252424 141800464 158371820 163615920 175315530 177250580 187003232 190046184 205883366 212700696 215772960 233754040 237557730 253394912 265875870 280504848 283600928 308825049 316743640 327231840 350631060 354501160 380092368 411766732 425401392 467508080 475115460 514708415 531751740 561009696 617650098 633487280 701262120 709002320 760184736 823533464 850802784 935016160 950230920 1029416830 1063503480 1235300196 1266974560 1338241879 1402524240 1418004640 1544125245 1647066928 1900461840 2058833660 2127006960 2470600392 2676483758 2805048480 3088250490 3294133856 3800923680 4014725637 4117667320 4254013920 4941200784 5352967516 6176500980 6691209395 8029451274 8235334640 9882401568 10705935032 12353001960 13382418790 16058902548 16470669280 20073628185 21411870064 24706003920 26764837580 32117805096 40147256370 42823740128 49412007840 53529675160 64235610192 80294512740 107059350320 128471220384 160589025480 214118700640 321178050960 642356101920
• Sum of all divisors σ(n): 2215225962432
• Sum of proper divisors (its aliquot sum) s(n): 1572869860512
• 642356101920 is an abundant number, because the sum of its proper divisors (1572869860512) is greater than itself. Its abundance is 930513758592

Bases of 642356101920

• Binary: 1001010110001111011010000100001100100000₂
• Hexadecimal: 0x958F684320
• Base-36: 873E8KDC

Squares and roots of 642356101920

• 642356101920 squared (642356101920²) is 412621361673857427686400
• 642356101920 cubed (642356101920³) is 265049849453741543618474188197888000
• The square root of 642356101920 is 801471.2109115337
• The cube root of 642356101920 is 8628.3009505249

Scales and comparisons

• 642,356,101,920 seconds is equal to 20,424 years, 48 weeks, 5 days, 2 hours, 32 minutes.
• To count from 1 to 642,356,101,920 would take you about forty thousand, eight hundred forty-nine 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 642356101920 cubic inches would be around 719 feet tall.

Recreational maths with 642356101920

• 642356101920 backwards is 029101653246
• 642356101920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 642356101920's digits is 39
• More coming soon!