66478401920

Names of 66478401920

• Cardinal: 66478401920 can be written as Sixty-six billion, four hundred seventy-eight million, four hundred one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.647840192 × 10¹⁰

Factors of 66478401920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 567

Divisors of 66478401920

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 71 73 80 98 112 128 140 142 146 160 196 224 245 280 284 292 320 355 365 392 409 448 490 497 511 560 568 584 640 710 730 784 818 896 980 994 1022 1120 1136 1168 1420 1460 1568 1636 1960 1988 2044 2045 2240 2272 2336 2485 2555 2840 2863 2920 3136 3272 3479 3577 3920 3976 4088 4090 4480 4544 4672 4970 5110 5183 5680 5726 5840 6272 6544 6958 7154 7840 7952 8176 8180 9088 9344 9940 10220 10366 11360 11452 11680 13088 13916 14308 14315 15680 15904 16352 16360 17395 17885 19880 20041 20440 20732 22720 22904 23360 25915 26176 27832 28616 28630 29039 29857 31360 31808 32704 32720 34790 35770 36281 39760 40082 40880 41464 45440 45808 46720 51830 52352 55664 57232 57260 58078 59714 63616 65408 65440 69580 71540 72562 79520 80164 81760 82928 91616 100205 103660 111328 114464 114520 116156 119428 130880 139160 143080 145124 145195 149285 159040 160328 163520 165856 181405 183232 200410 203273 207320 208999 222656 228928 229040 232312 238856 253967 261760 278320 286160 290248 290390 298570 318080 320656 327040 331712 362810 366464 400820 406546 414640 417998 445312 457856 458080 464624 477712 507934 556640 572320 580496 580780 597140 641312 663424 725620 801640 813092 829280 835996 916160 929248 955424 1015868 1016365 1044995 1113280 1144640 1160992 1161560 1194280 1269835 1282624 1422911 1451240 1462993 1603280 1626184 1658560 1671992 1832320 1858496 1910848 2031736 2032730 2089990 2119847 2226560 2289280 2321984 2323120 2388560 2539670 2565248 2845822 2902480 2925986 3206560 3252368 3317120 3343984 3716992 3821696 4063472 4065460 4179980 4239694 4643968 4646240 4777120 5079340 5691644 5804960 5851972 6413120 6504736 6687968 7114555 7314965 8126944 8130920 8359960 8479388 9292480 9554240 10158680 10599235 11383288 11609920 11703944 12826240 13009472 13375936 14229110 14629930 14838929 16253888 16261840 16719920 16958776 18584960 19108480 20317360 21198470 22766576 23219840 23407888 26018944 26751872 28458220 29259860 29677858 32507776 32523680 33439840 33917552 40634720 42396940 45533152 46815776 56916440 58519720 59355716 65047360 66879680 67835104 74194645 81269440 84793880 91066304 93631552 103872503 113832880 117039440 118711432 130094720 133759360 135670208 148389290 162538880 169587760 182132608 187263104 207745006 227665760 234078880 237422864 271340416 296778580 339175520 415490012 455331520 468157760 474845728 519362515 593557160 678351040 830980024 910663040 936315520 949691456 1038725030 1187114320 1356702080 1661960048 1899382912 2077450060 2374228640 3323920096 4154900120 4748457280 6647840192 8309800240 9496914560 13295680384 16619600480 33239200960 66478401920
• Sum of all divisors σ(n): 190508500800
• Sum of proper divisors (its aliquot sum) s(n): 124030098880
• 66478401920 is an abundant number, because the sum of its proper divisors (124030098880) is greater than itself. Its abundance is 57551696960

Bases of 66478401920

• Binary: 111101111010011010111110100110000000₂
• Hexadecimal: 0xF7A6BE980
• Base-36: UJFIV7K

Squares and roots of 66478401920

• 66478401920 squared (66478401920²) is 4419377921837059686400
• 66478401920 cubed (66478401920³) is 293793181724258398583528357888000
• The square root of 66478401920 is 257834.0588828403
• The cube root of 66478401920 is 4050.9808510883

Scales and comparisons

• 66,478,401,920 seconds is equal to 2,113 years, 41 weeks, 6 days, 22 hours, 45 minutes, 20 seconds.
• To count from 1 to 66,478,401,920 would take you about four thousand, two hundred twenty-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 66478401920 cubic inches would be around 337.6 feet tall.

Recreational maths with 66478401920

• 66478401920 backwards is 02910487466
• The number of decimal digits it has is: 11
• The sum of 66478401920's digits is 47
• More coming soon!