161405790256421370

Names of 161405790256421370

• Cardinal: 161405790256421370 can be written as One hundred sixty-one quadrillion, four hundred five trillion, seven hundred ninety billion, two hundred fifty-six million, four hundred twenty-one thousand, three hundred seventy.

Scientific notation

• Scientific notation: 1.6140579025642137 × 10¹⁷

Factors of 161405790256421370

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 10712671906

Divisors of 161405790256421370

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 19 22 27 30 33 38 45 54 55 57 66 81 89 90 95 99 110 114 135 162 165 171 178 190 198 209 267 270 285 297 330 342 405 418 445 495 513 534 570 594 627 801 810 855 890 891 979 990 1026 1045 1254 1335 1485 1539 1602 1691 1710 1782 1881 1958 2090 2403 2565 2670 2937 2970 3078 3135 3382 3762 4005 4455 4806 4895 5073 5130 5643 5874 6270 7209 7695 8010 8455 8811 8910 9405 9790 10146 11286 12015 14418 14685 15219 15390 16910 16929 17622 18601 18810 24030 25365 26433 28215 29370 30438 33858 36045 37202 44055 45657 50730 52866 55803 56430 72090 76095 79299 84645 88110 91314 93005 111606 132165 136971 152190 158598 167409 169290 186010 228285 264330 273942 279015 334818 396495 456570 502227 558030 684855 792990 837045 1004454 1369710 1506681 1674090 2511135 3013362 5022270 7533405 15066810 10712671777 21425343554 32138015331 53563358885 64276030662 96414045993 107126717770 117839389547 160690076655 192828091986 203540763763 235678779094 289242137979 321380153310 353518168641 407081527526 482070229965 578484275958 589196947735 610622291289 707036337282 867726413937 953427788153 964140459930 1017703818815 1060554505923 1178393895470 1221244582578 1446210689895 1735452827874 1767590843205 1831866873867 1906855576306 2035407637630 2121109011846 2238948401393 2860283364459 2892421379790 3053111456445 3181663517769 3535181686410 3663733747734 4338632069685 4477896802786 4767138940765 5302772529615 5495600621601 5720566728918 6106222912890 6363327035538 6716845204179 8580850093377 8677264139370 9159334369335 9534277881530 9544990553307 10487705669683 10605545059230 10991201243202 11194742006965 13433690408358 14301416822295 15908317588845 16486801864803 17161700186754 18115127974907 18318668738670 19089981106614 20150535612537 20975411339366 22389484013930 25742550280131 27478003108005 28602833644590 31463117009049 31816635177690 32973603729606 33584226020895 36230255949814 40301071225074 42904250466885 47724952766535 51485100560262 52438528348415 54345383924721 54956006216010 60451606837611 62926234018098 67168452041790 77227650840393 82434009324015 85808500933770 90575639874535 94389351027147 95449905533070 100752678062685 104877056696830 108690767849442 120903213675222 128712751400655 154455301680786 157315585045245 163036151774163 164868018648030 181151279749070 181354820512833 188778702054294 199266407723977 201505356125370 257425502801310 271726919623605 283168053081441 302258034188055 314631170090490 326072303548326 362709641025666 386138254201965 398532815447954 471946755135735 489108455322489 543453839247210 566336106162882 597799223171931 604516068376110 772276508403930 815180758870815 849504159244323 906774102564165 943893510271470 978216910644978 996332038619885 1195598446343862 1415840265407205 1467325365967467 1630361517741630 1699008318488646 1793397669515793 1813548205128330 1992664077239770 2445542276612445 2831680530814410 2934650731934934 2988996115859655 3586795339031586 4247520796221615 4891084553224890 5380193008547379 5977992231719310 7336626829837335 8495041592443230 8966988347578965 10760386017094758 14673253659674670 16140579025642137 17933976695157930 26900965042736895 32281158051284274 53801930085473790 80702895128210685 161405790256421370
• Sum of all divisors σ(n): 503975501261654400
• Sum of proper divisors (its aliquot sum) s(n): 342569711005233030
• 161405790256421370 is an abundant number, because the sum of its proper divisors (342569711005233030) is greater than itself. Its abundance is 181163920748811660

Bases of 161405790256421370

• Binary: 1000111101011011011011011000001000111011001101100111111010₂
• Hexadecimal: 0x23D6DB608ECD9FA
• Base-36: 1859KSEONXMI

Squares and roots of 161405790256421370

• 161405790256421370 squared (161405790256421370²) is 26051829128299887661216518992676900
• 161405790256421370 cubed (161405790256421370³) is 4204916068078500440954467573998254925984230665353000
• The square root of 161405790256421370 is 401753394.8287448759
• The cube root of 161405790256421370 is 544468.8484547987

Scales and comparisons

• 161,405,790,256,421,370 seconds is equal to 5,132,204,869 years, 13 weeks, 5 days, 6 hours, 49 minutes, 30 seconds.
• To count from 1 to 161,405,790,256,421,370 would take you about fifteen billion, three hundred ninety-six million, six hundred fourteen thousand, six hundred 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 161405790256421370 cubic inches would be around 45372.4 feet tall.

Recreational maths with 161405790256421370

• 161405790256421370 backwards is 073124652097504161
• The number of decimal digits it has is: 18
• The sum of 161405790256421370's digits is 63
• More coming soon!