6643443840

Names of 6643443840

• Cardinal: 6643443840 can be written as Six billion, six hundred forty-three million, four hundred forty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.64344384 × 10⁹

Factors of 6643443840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 264

Divisors of 6643443840

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 31 32 33 40 44 48 55 60 62 64 66 73 80 88 93 96 110 120 124 128 132 139 146 155 160 165 176 186 192 219 220 240 248 264 278 292 310 320 330 341 352 365 372 384 417 438 440 465 480 496 528 556 584 620 640 660 682 695 704 730 744 803 834 876 880 930 960 992 1023 1056 1095 1112 1168 1240 1320 1364 1390 1408 1460 1488 1529 1606 1668 1705 1752 1760 1860 1920 1984 2046 2085 2112 2190 2224 2263 2336 2409 2480 2640 2728 2780 2920 2976 3058 3212 3336 3410 3504 3520 3720 3968 4015 4092 4170 4224 4309 4380 4448 4526 4587 4672 4818 4960 5115 5280 5456 5560 5840 5952 6116 6424 6672 6789 6820 7008 7040 7440 7645 8030 8184 8340 8618 8760 8896 9052 9174 9344 9636 9920 10147 10230 10560 10912 11120 11315 11680 11904 12045 12232 12848 12927 13344 13578 13640 14016 14880 15290 16060 16368 16680 17236 17520 17792 18104 18348 19272 19840 20294 20460 21120 21545 21824 22240 22630 22935 23360 24090 24464 24893 25696 25854 26688 27156 27280 28032 29760 30441 30580 32120 32736 33360 33945 34472 35040 36208 36696 38544 40588 40920 43090 43648 44480 45260 45870 46720 47399 48180 48928 49786 50735 51392 51708 53376 54312 54560 59520 60882 61160 64240 64635 65472 66720 67890 68944 70080 72416 73392 74679 77088 81176 81840 86180 88960 90520 91740 94798 96360 97856 99572 101470 102784 103416 108624 109120 111617 121764 122320 124465 128480 129270 130944 133440 135780 137888 140160 142197 144832 146784 149358 152205 154176 162352 163680 172360 181040 183480 189596 192720 195712 199144 202940 206832 217248 218240 223234 236995 243528 244640 248930 256960 258540 266880 271560 275776 284394 289664 293568 298716 304410 308352 314557 324704 327360 334851 344720 362080 366960 373395 379192 385440 398288 405880 413664 434496 446468 473990 487056 489280 497860 513920 517080 543120 551552 558085 568788 587136 597432 608820 629114 649408 654720 669702 689440 710985 724160 733920 746790 758384 770880 796576 811760 827328 868992 892936 943671 947980 974112 978560 995720 1034160 1086240 1116170 1137576 1194864 1217640 1258228 1298816 1339404 1378880 1421970 1448320 1467840 1493580 1516768 1541760 1572785 1593152 1623520 1654656 1674255 1785872 1887342 1895960 1948224 1991440 2068320 2172480 2232340 2275152 2389728 2435280 2516456 2678808 2757760 2843940 2935680 2987160 3033536 3145570 3186304 3247040 3348510 3460127 3571744 3774684 3791920 3896448 3982880 4136640 4344960 4464680 4550304 4718355 4779456 4870560 5032912 5357616 5687880 5974320 6067072 6291140 6494080 6697020 6920254 7143488 7549368 7583840 7965760 8273280 8929360 9100608 9436710 9558912 9741120 10065824 10380381 10715232 11375760 11948640 12582280 13394040 13840508 14286976 15098736 15167680 15931520 17300635 17858720 18201216 18873420 19482240 20131648 20760762 21430464 22751520 23897280 25164560 26788080 27681016 30197472 30335360 34601270 35717440 37746840 40263296 41521524 42860928 45503040 47794560 50329120 51901905 53576160 55362032 60394944 69202540 71434880 75493680 83043048 91006080 100658240 103803810 107152320 110724064 120789888 138405080 150987360 166086096 201316480 207607620 214304640 221448128 276810160 301974720 332172192 415215240 442896256 553620320 603949440 664344384 830430480 1107240640 1328688768 1660860960 2214481280 3321721920 6643443840
• Sum of all divisors σ(n): 24346828800
• Sum of proper divisors (its aliquot sum) s(n): 17703384960
• 6643443840 is an abundant number, because the sum of its proper divisors (17703384960) is greater than itself. Its abundance is 11059941120

Bases of 6643443840

• Binary: 110001011111110101110100010000000₂
• Hexadecimal: 0x18BFAE880
• Base-36: 31VC22O

Squares and roots of 6643443840

• 6643443840 squared (6643443840²) is 44135346055233945600
• 6643443840 cubed (6643443840³) is 293210692876912255655215104000
• The square root of 6643443840 is 81507.3238427075
• The cube root of 6643443840 is 1879.8841636793

Scales and comparisons

• 6,643,443,840 seconds is equal to 211 years, 12 weeks, 3 days, 17 hours, 4 minutes.
• To count from 1 to 6,643,443,840 would take you about four hundred twenty-two 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 6643443840 cubic inches would be around 156.7 feet tall.

Recreational maths with 6643443840

• 6643443840 backwards is 0483443466
• The number of decimal digits it has is: 10
• The sum of 6643443840's digits is 42
• More coming soon!