68990004720

Names of 68990004720

• Cardinal: 68990004720 can be written as Sixty-eight billion, nine hundred ninety million, four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.899000472 × 10¹⁰

Factors of 68990004720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 78

Divisors of 68990004720

• Number of divisors d(n): 1920
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 19 20 21 24 26 27 28 29 30 35 36 38 39 40 42 45 48 49 52 54 56 57 58 60 63 65 70 72 76 78 80 84 87 90 91 95 98 104 105 108 112 114 116 117 120 126 130 133 135 140 144 145 147 152 156 168 169 171 174 180 182 189 190 195 196 203 208 210 216 228 232 234 240 245 247 252 260 261 266 270 273 280 285 290 294 304 312 315 336 338 342 343 348 351 360 364 377 378 380 390 392 399 406 420 432 435 441 455 456 464 468 490 494 504 507 513 520 522 532 540 546 551 560 570 580 585 588 609 624 630 637 665 676 684 686 696 702 720 728 735 741 754 756 760 780 783 784 798 812 819 840 845 855 870 882 910 912 931 936 945 980 988 1008 1014 1015 1026 1029 1040 1044 1064 1080 1092 1102 1131 1140 1160 1170 1176 1183 1197 1218 1235 1260 1274 1305 1323 1330 1352 1365 1368 1372 1392 1404 1421 1456 1470 1482 1508 1512 1520 1521 1560 1566 1596 1624 1638 1653 1680 1690 1710 1715 1729 1740 1755 1764 1820 1827 1862 1872 1885 1890 1911 1960 1976 1995 2028 2030 2052 2058 2088 2128 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148685355 151293870 151626384 156439920 158597712 159699085 164261916 169926120 172907280 175994910 176897448 181552644 182513240 182997360 189532980 191638902 196552720 198247140 201137040 201725160 204112440 205327395 219015888 221121810 226940805 234659880 237896568 242070192 246392874 252710640 255518536 259360920 264329520 265346172 273769860 279311760 281591856 287458353 294829080 297370710 302587740 319398170 328523832 331682715 339852240 351989820 353794896 363105288 365026480 379065960 383277804 396494280 403450320 408224880 410654790 442243620 453881610 469319760 475793136 479097255 492785748 511037072 518721840 530692344 547539720 574916706 589658160 594741420 605175480 615982185 638796340 657047664 663365430 703979640 726210576 758131920 766555608 792988560 821309580 862375059 884487240 907763220 958194510 985571496 1061384688 1095079440 1149833412 1189482840 1210350960 1231964370 1277592680 1326730860 1407959280 1437291765 1533111216 1642619160 1724750118 1768974480 1815526440 1916389020 1971142992 2299666824 2378965680 2463928740 2555185360 2653461720 2874583530 3285238320 3449500236 3631052880 3832778040 4311875295 4599333648 4927857480 5306923440 5749167060 6899000472 7665556080 8623750590 9855714960 11498334120 13798000944 17247501180 22996668240 34495002360 68990004720
• Sum of all divisors σ(n): 326764800000
• Sum of proper divisors (its aliquot sum) s(n): 257774795280
• 68990004720 is an abundant number, because the sum of its proper divisors (257774795280) is greater than itself. Its abundance is 188784790560

Bases of 68990004720

• Binary: 1000000010000000111111110110111110000₂
• Hexadecimal: 0x10101FEDF0
• Base-36: VOYV8C0

Squares and roots of 68990004720

• 68990004720 squared (68990004720²) is 4759620751265622278400
• 68990004720 cubed (68990004720³) is 328366258095225226960553154048000
• The square root of 68990004720 is 262659.4843518885
• The cube root of 68990004720 is 4101.3678703805

Scales and comparisons

• 68,990,004,720 seconds is equal to 2,193 years, 34 weeks, 5 days, 10 hours, 12 minutes.
• To count from 1 to 68,990,004,720 would take you about four thousand, three hundred eighty-seven 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 68990004720 cubic inches would be around 341.8 feet tall.

Recreational maths with 68990004720

• 68990004720 backwards is 02740009986
• 68990004720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 68990004720's digits is 45
• More coming soon!