31112971920

Names of 31112971920

• Cardinal: 31112971920 can be written as Thirty-one billion, one hundred twelve million, nine hundred seventy-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.111297192 × 10¹⁰

Factors of 31112971920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2873

Divisors of 31112971920

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 61 72 80 90 120 122 144 180 183 240 244 281 305 360 366 488 549 562 610 720 732 843 915 976 1098 1124 1220 1405 1464 1686 1830 2196 2248 2440 2521 2529 2745 2810 2928 3372 3660 4215 4392 4496 4880 5042 5058 5490 5620 6744 7320 7563 8430 8784 10084 10116 10980 11240 12605 12645 13488 14640 15126 16860 17141 20168 20232 21960 22480 22689 25210 25290 30252 33720 34282 37815 40336 40464 43920 45378 50420 50580 51423 60504 67440 68564 75630 85705 90756 100840 101160 102846 113445 121008 137128 151260 153781 154269 171410 181512 201680 202320 205692 226890 257115 274256 302520 307562 308538 342820 363024 411384 453780 461343 514230 605040 615124 617076 685640 708401 768905 771345 822768 907560 922686 1028460 1230248 1234152 1371280 1384029 1416802 1537810 1542690 1815120 1845372 2056920 2125203 2306715 2460496 2468304 2768058 2833604 3075620 3085380 3542005 3690744 4113840 4250406 4613430 5536116 5667208 6151240 6170760 6375609 6920145 7084010 7381488 8500812 9226860 10626015 11072232 11334416 12302480 12341520 12751218 13840290 14168020 17001624 18453720 21252030 22144464 25502436 27680580 28336040 31878045 34003248 36907440 42504060 43212461 51004872 55361160 56672080 63756090 85008120 86424922 102009744 110722320 127512180 129637383 170016240 172849844 216062305 255024360 259274766 345699688 388912149 432124610 510048720 518549532 648186915 691399376 777824298 864249220 1037099064 1296373830 1555648596 1728498440 1944560745 2074198128 2592747660 3111297192 3456996880 3889121490 5185495320 6222594384 7778242980 10370990640 15556485960 31112971920
• Sum of all divisors σ(n): 106620858864
• Sum of proper divisors (its aliquot sum) s(n): 75507886944
• 31112971920 is an abundant number, because the sum of its proper divisors (75507886944) is greater than itself. Its abundance is 44394915024

Bases of 31112971920

• Binary: 11100111110011110100100011010010000₂
• Hexadecimal: 0x73E7A4690
• Base-36: EAJUYS0

Squares and roots of 31112971920

• 31112971920 squared (31112971920²) is 968017021694708486400
• 31112971920 cubed (31112971920³) is 30117886414069495949948901888000
• The square root of 31112971920 is 176388.6955561495
• The cube root of 31112971920 is 3145.1920241531

Scales and comparisons

• 31,112,971,920 seconds is equal to 989 years, 15 weeks, 2 days, 20 hours, 12 minutes.
• To count from 1 to 31,112,971,920 would take you about one thousand, nine hundred seventy-eight 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 31112971920 cubic inches would be around 262.1 feet tall.

Recreational maths with 31112971920

• 31112971920 backwards is 02917921113
• 31112971920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31112971920's digits is 36
• More coming soon!