18943808040

Names of 18943808040

• Cardinal: 18943808040 can be written as Eighteen billion, nine hundred forty-three million, eight hundred eight thousand and forty.

Scientific notation

• Scientific notation: 1.894380804 × 10¹⁰

Factors of 18943808040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1671

Divisors of 18943808040

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 29 30 36 40 45 54 58 60 72 87 90 108 116 120 135 145 174 180 216 232 261 270 290 348 360 435 522 540 569 580 696 783 870 1044 1063 1080 1138 1160 1305 1566 1707 1740 2088 2126 2276 2610 2845 3132 3189 3414 3480 3915 4252 4552 5121 5220 5315 5690 6264 6378 6828 7830 8504 8535 9567 10242 10440 10630 11380 12756 13656 15363 15660 15945 16501 17070 19134 20484 21260 22760 25512 25605 28701 30726 30827 31320 31890 33002 34140 38268 40968 42520 47835 49503 51210 57402 61452 61654 63780 66004 68280 76536 76815 82505 92481 95670 99006 102420 114804 122904 123308 127560 132008 143505 148509 153630 154135 165010 184962 191340 198012 204840 229608 246616 247515 277443 287010 297018 307260 308270 330020 369924 382680 396024 445527 462405 495030 554886 574020 594036 604847 614520 616540 660040 739848 742545 832329 891054 924810 990060 1109772 1148040 1188072 1209694 1233080 1387215 1485090 1664658 1782108 1814541 1849620 1980120 2219544 2227635 2419388 2774430 2970180 3024235 3329316 3564216 3629082 3699240 4161645 4455270 4838776 5443623 5548860 5940360 6048470 6658632 7258164 8323290 8910540 9072705 10887246 11097720 12096940 14516328 16330869 16646580 17540563 17821080 18145410 21774492 24193880 27218115 32661738 33293160 35081126 36290820 43548984 52621689 54436230 65323476 70162252 72581640 81654345 87702815 105243378 108872460 130646952 140324504 157865067 163308690 175405630 210486756 217744920 263108445 315730134 326617380 350811260 420973512 473595201 526216890 631460268 653234760 701622520 789325335 947190402 1052433780 1262920536 1578650670 1894380804 2104867560 2367976005 3157301340 3788761608 4735952010 6314602680 9471904020 18943808040
• Sum of all divisors σ(n): 65499840000
• Sum of proper divisors (its aliquot sum) s(n): 46556031960
• 18943808040 is an abundant number, because the sum of its proper divisors (46556031960) is greater than itself. Its abundance is 27612223920

Bases of 18943808040

• Binary: 10001101001001000111001001000101000₂
• Hexadecimal: 0x469239228
• Base-36: 8PANJU0

Squares and roots of 18943808040

• 18943808040 squared (18943808040²) is 358867863056368641600
• 18943808040 cubed (18943808040³) is 6798323909464855245945958464000
• The square root of 18943808040 is 137636.5069303925
• The cube root of 18943808040 is 2665.7684771575

Scales and comparisons

• 18,943,808,040 seconds is equal to 602 years, 18 weeks, 3 days, 54 minutes.
• To count from 1 to 18,943,808,040 would take you about one thousand, two hundred 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 18943808040 cubic inches would be around 222.1 feet tall.

Recreational maths with 18943808040

• 18943808040 backwards is 04080834981
• 18943808040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18943808040's digits is 45
• More coming soon!