40018908720

Names of 40018908720

• Cardinal: 40018908720 can be written as Forty billion, eighteen million, nine hundred eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 4.001890872 × 10¹⁰

Factors of 40018908720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 160037

Divisors of 40018908720

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 149 168 210 240 280 298 336 420 447 560 596 745 840 894 1043 1192 1490 1680 1788 2086 2235 2384 2980 3129 3576 4172 4470 5215 5960 6258 7152 8344 8940 10430 11920 12516 15645 16688 17880 20860 25032 31290 35760 41720 50064 62580 83440 125160 159871 250320 319742 479613 639484 799355 959226 1119097 1278968 1598710 1918452 2238194 2398065 2557936 3197420 3357291 3836904 4476388 4796130 5595485 6394840 6714582 7673808 8952776 9592260 11190970 12789680 13429164 16786455 17905552 19184520 22381940 23820779 26858328 33572910 38369040 44763880 47641558 53716656 67145820 71462337 89527760 95283116 119103895 134291640 142924674 166745453 190566232 238207790 268583280 285849348 333490906 357311685 381132464 476415580 500236359 571698696 666981812 714623370 833727265 952831160 1000472718 1143397392 1333963624 1429246740 1667454530 1905662320 2000945436 2501181795 2667927248 2858493480 3334909060 4001890872 5002363590 5716986960 6669818120 8003781744 10004727180 13339636240 20009454360 40018908720
• Sum of all divisors σ(n): 142733721600
• Sum of proper divisors (its aliquot sum) s(n): 102714812880
• 40018908720 is an abundant number, because the sum of its proper divisors (102714812880) is greater than itself. Its abundance is 62695904160

Bases of 40018908720

• Binary: 100101010001010100000001011000110000₂
• Hexadecimal: 0x951501630
• Base-36: IDU83LC

Squares and roots of 40018908720

• 40018908720 squared (40018908720²) is 1601513055139692038400
• 40018908720 cubed (40018908720³) is 64090804767523662533640334848000
• The square root of 40018908720 is 200047.2662147623
• The cube root of 40018908720 is 3420.4906994011

Scales and comparisons

• 40,018,908,720 seconds is equal to 1,272 years, 24 weeks, 5 days, 19 hours, 32 minutes.
• To count from 1 to 40,018,908,720 would take you about two thousand, five hundred forty-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 40018908720 cubic inches would be around 285 feet tall.

Recreational maths with 40018908720

• 40018908720 backwards is 02780981004
• The number of decimal digits it has is: 11
• The sum of 40018908720's digits is 39
• More coming soon!