642738503680

Names of 642738503680

• Cardinal: 642738503680 can be written as Six hundred forty-two billion, seven hundred thirty-eight million, five hundred three thousand, six hundred eighty.

Scientific notation

• Scientific notation: 6.4273850368 × 10¹¹

Factors of 642738503680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 249

Divisors of 642738503680

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 49 52 56 64 65 70 80 91 98 104 109 112 113 128 130 140 160 182 196 208 218 224 226 245 256 260 280 320 364 392 416 436 448 452 455 490 512 520 545 560 565 637 640 728 763 784 791 832 872 896 904 910 980 1024 1040 1090 1120 1130 1274 1280 1417 1456 1469 1526 1568 1582 1664 1744 1792 1808 1820 1960 2048 2080 2180 2240 2260 2548 2560 2834 2912 2938 3052 3136 3164 3185 3328 3488 3584 3616 3640 3815 3920 3955 4096 4160 4360 4480 4520 5096 5120 5341 5537 5668 5824 5876 6104 6272 6328 6370 6656 6976 7085 7168 7232 7280 7345 7630 7840 7910 8192 8320 8720 8960 9040 9919 10192 10240 10283 10682 11074 11336 11648 11752 12208 12317 12544 12656 12740 13312 13952 14170 14336 14464 14560 14690 15260 15680 15820 16384 16640 17440 17920 18080 19838 20384 20480 20566 21364 22148 22672 23296 23504 24416 24634 25088 25312 25480 26624 26705 27685 27904 28340 28672 28928 29120 29380 30520 31360 31640 33280 34880 35840 36160 39676 40768 40960 41132 42728 44296 45344 46592 47008 48832 49268 49595 50176 50624 50960 51415 53248 53410 55370 55808 56680 57344 57856 58240 58760 61040 61585 62720 63280 66560 69433 69760 71680 71981 72320 79352 81536 81920 82264 85456 86219 88592 90688 93184 94016 97664 98536 99190 100352 101248 101920 102830 106496 106820 110740 111616 113360 114688 115712 116480 117520 122080 123170 125440 126560 133120 138866 139520 143360 143962 144640 158704 160121 163072 164528 170912 172438 177184 181376 186368 188032 195328 197072 198380 200704 202496 203840 205660 212992 213640 221480 223232 226720 231424 232960 235040 244160 246340 250880 253120 266240 277732 279040 286720 287924 289280 317408 320242 326144 329056 341824 344876 347165 354368 359905 362752 372736 376064 390656 394144 396760 401408 404992 407680 411320 427280 431095 442960 446464 453440 462848 465920 470080 488320 492680 501760 506240 532480 555464 558080 573440 575848 578560 603533 634816 640484 652288 658112 683648 689752 694330 708736 719810 725504 745472 752128 781312 788288 793520 800605 802816 809984 815360 822640 854560 862190 885920 892928 906880 925696 931840 940160 976640 985360 1003520 1012480 1064960 1110928 1116160 1120847 1151696 1157120 1207066 1269632 1280968 1304576 1316224 1367296 1379504 1388660 1417472 1439620 1451008 1490944 1504256 1562624 1576576 1587040 1601210 1619968 1630720 1645280 1709120 1724380 1771840 1785856 1813760 1851392 1863680 1880320 1953280 1970720 2007040 2024960 2221856 2232320 2241694 2303392 2314240 2414132 2539264 2561936 2609152 2632448 2734592 2759008 2777320 2834944 2879240 2902016 3008512 3017665 3125248 3153152 3174080 3202420 3239936 3261440 3290560 3418240 3448760 3543680 3627520 3727360 3760640 3906560 3941440 4014080 4049920 4443712 4464640 4483388 4606784 4628480 4828264 5078528 5123872 5218304 5264896 5469184 5518016 5554640 5604235 5669888 5758480 5804032 6017024 6035330 6250496 6306304 6348160 6404840 6479872 6522880 6581120 6836480 6897520 7087360 7255040 7454720 7521280 7813120 7845929 7882880 8099840 8887424 8929280 8966776 9213568 9256960 9656528 10157056 10247744 10436608 10529792 10938368 11036032 11109280 11208470 11339776 11516960 11608064 12034048 12070660 12500992 12612608 12696320 12809680 12959744 13045760 13162240 13672960 13795040 14174720 14510080 15042560 15626240 15691858 15765760 16199680 17774848 17933552 18427136 19313056 20314112 20495488 21059584 21876736 22072064 22218560 22416940 22679552 23033920 23216128 24068096 24141320 25225216 25392640 25619360 26091520 26324480 27345920 27590080 28349440 29020160 30085120 31252480 31383716 31531520 32399360 35549696 35867104 36854272 38626112 39229645 40628224 40990976 42119168 43753472 44144128 44437120 44833880 45359104 46067840 48282640 50450432 50785280 51238720 52183040 52648960 54691840 55180160 56698880 58040320 60170240 62504960 62767432 63063040 64798720 71099392 71734208 73708544 77252224 78459290 81256448 81981952 84238336 87506944 88288256 88874240 89667760 90718208 92135680 96565280 100900864 101570560 102477440 105297920 109383680 110360320 113397760 116080640 120340480 125534864 126126080 142198784 143468416 147417088 154504448 156918580 162512896 163963904 168476672 176576512 177748480 179335520 184271360 193130560 201801728 203141120 204954880 210595840 218767360 220720640 226795520 251069728 252252160 284397568 286936832 294834176 309008896 313837160 327927808 353153024 355496960 358671040 368542720 386261120 406282240 409909760 421191680 437534720 441441280 453591040 502139456 504504320 568795136 573873664 589668352 618017792 627674320 655855616 706306048 710993920 717342080 737085440 772522240 812564480 819819520 842383360 882882560 1004278912 1009008640 1137590272 1147747328 1179336704 1236035584 1255348640 1311711232 1412612096 1421987840 1434684160 1474170880 1545044480 1639639040 1765765120 2008557824 2295494656 2472071168 2510697280 2623422464 2843975680 2869368320 2948341760 3090088960 3279278080 3531530240 4017115648 4590989312 4944142336 5021394560 5687951360 5738736640 5896683520 6180177920 6558556160 7063060480 8034231296 9181978624 9888284672 10042789120 11477473280 12360355840 13117112320 16068462592 18363957248 20085578240 22954946560 24720711680 32136925184 40171156480 45909893120 49441423360 64273850368 80342312960 91819786240 128547700736 160684625920 321369251840 642738503680
• Sum of all divisors σ(n): 1967380485840
• Sum of proper divisors (its aliquot sum) s(n): 1324641982160
• 642738503680 is an abundant number, because the sum of its proper divisors (1324641982160) is greater than itself. Its abundance is 681903478480

Bases of 642738503680

• Binary: 1001010110100110001100110100000000000000₂
• Hexadecimal: 0x95A6334000
• Base-36: 879PWRGG

Squares and roots of 642738503680

• 642738503680 squared (642738503680²) is 413112784112805373542400
• 642738503680 cubed (642738503680³) is 265523492711743402117705637036032000
• The square root of 642738503680 is 801709.7377979139
• The cube root of 642738503680 is 8630.0127855115

Scales and comparisons

• 642,738,503,680 seconds is equal to 20,437 years, 5 weeks, 1 hour, 14 minutes, 40 seconds.
• To count from 1 to 642,738,503,680 would take you about forty thousand, eight hundred seventy-four 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 642738503680 cubic inches would be around 719.2 feet tall.

Recreational maths with 642738503680

• 642738503680 backwards is 086305837246
• 642738503680 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 642738503680's digits is 52
• More coming soon!