61381653840

Names of 61381653840

• Cardinal: 61381653840 can be written as Sixty-one billion, three hundred eighty-one million, six hundred fifty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 6.138165384 × 10¹⁰

Factors of 61381653840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 395

Divisors of 61381653840

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 19 20 24 26 30 34 36 38 39 40 45 48 51 52 57 60 65 68 72 76 78 79 80 85 90 95 102 104 114 117 120 130 136 144 152 153 156 158 170 171 180 190 195 204 208 221 228 234 237 240 247 255 257 260 272 285 304 306 312 316 323 340 342 360 380 390 395 408 442 456 468 474 494 510 514 520 570 585 612 624 632 646 663 680 684 711 720 741 760 765 771 780 790 816 855 884 912 936 948 969 988 1020 1027 1028 1040 1105 1140 1170 1185 1224 1235 1264 1285 1292 1326 1343 1360 1368 1422 1482 1501 1520 1530 1542 1560 1580 1615 1710 1768 1872 1896 1938 1976 1989 2040 2054 2056 2210 2223 2280 2313 2340 2370 2448 2470 2570 2584 2652 2686 2736 2844 2907 2964 3002 3060 3081 3084 3120 3160 3230 3315 3341 3420 3536 3555 3705 3792 3855 3876 3952 3978 4029 4080 4108 4112 4199 4369 4420 4446 4503 4560 4626 4680 4740 4845 4883 4940 5135 5140 5168 5304 5372 5688 5814 5928 6004 6120 6162 6168 6320 6460 6630 6682 6715 6840 7110 7410 7505 7710 7752 7956 8058 8216 8398 8738 8840 8892 9006 9243 9252 9360 9480 9690 9766 9880 9945 10023 10270 10280 10608 10744 11115 11376 11565 11628 11856 12008 12087 12240 12324 12336 12597 12920 13107 13260 13364 13430 13509 13680 14220 14535 14649 14820 15010 15405 15420 15504 15912 16116 16432 16705 16796 17459 17476 17680 17784 18012 18486 18504 18960 19380 19513 19532 19760 19890 20046 20145 20303 20540 20560 20995 21488 21845 22230 22515 23130 23256 24016 24174 24415 24648 25194 25517 25840 26214 26520 26728 26860 27018 28440 29070 29298 29640 30020 30069 30810 30840 31824 32232 33410 33592 34918 34952 35568 36024 36972 37008 37791 38760 39026 39064 39321 39780 40092 40290 40606 41080 41990 43690 43947 44460 45030 46215 46260 46512 48348 48830 49296 50115 50388 51034 52377 52428 53040 53456 53720 54036 56797 56880 58140 58539 58596 59280 60040 60138 60435 60909 61620 61680 62985 63479 64464 65535 66820 67184 67545 69836 69904 72048 73245 73944 75582 76551 77520 78052 78128 78642 79560 80184 80580 81212 82160 83011 83980 87295 87380 87894 88920 90060 92430 92520 96696 97565 97660 100230 100776 101515 102068 104754 104856 107440 108072 113594 116280 117078 117192 120080 120276 120870 121818 123240 125970 126958 127585 131070 133640 135090 139672 146490 147888 150345 151164 153102 156104 157131 157284 159120 160368 161160 162424 166022 167960 170391 174590 174760 175617 175788 177840 180120 182727 184860 185040 188955 190437 193392 195130 195320 196605 200460 201552 203030 204136 209508 209712 216144 219735 227188 229653 232560 234156 234384 240552 241740 243636 246480 249033 251940 253916 255170 261885 262140 263939 267280 270180 279344 283985 292695 292980 300690 302328 304545 306204 312208 314262 314568 317395 322320 324848 331721 332044 335920 340782 345151 349180 349520 351234 351576 360240 365454 369720 377910 380874 382755 385757 390260 390640 393210 400920 406060 408272 415055 419016 439470 454376 459306 468312 481104 483480 487272 498066 503880 507832 510340 511173 523770 524280 527878 540360 567970 571311 585390 585960 601380 604656 609090 612408 628524 629136 634790 663442 664088 681564 690302 698360 702468 703152 730908 739440 747099 755820 761748 765510 771514 780520 785655 786420 791817 801840 812120 830110 838032 851955 878085 878940 908752 913635 918612 936624 952185 966960 974544 995163 996132 1007760 1015664 1020680 1022346 1035453 1047540 1048560 1055756 1079143 1080720 1135940 1142622 1148265 1157271 1170780 1171920 1202760 1218180 1224816 1245165 1257048 1269580 1319695 1326884 1328176 1363128 1380604 1396720 1404936 1461816 1494198 1511640 1523496 1531020 1543028 1561040 1571310 1572840 1583634 1624240 1658605 1660220 1703910 1725755 1756170 1757880 1827270 1837224 1904370 1928785 1990326 1992264 2041360 2044692 2070906 2095080 2111512 2158286 2271880 2285244 2296530 2314542 2341560 2375451 2405520 2436360 2490330 2514096 2539160 2555865 2639390 2653768 2726256 2761208 2809872 2856555 2923632 2985489 2988396 3023280 3046992 3062040 3086056 3106359 3142620 3145680 3167268 3237429 3317210 3320440 3407820 3451510 3471813 3512340 3515760 3654540 3674448 3735495 3808740 3857570 3959085 3980652 3984528 4089384 4141812 4190160 4223024 4316572 4486963 4543760 4570488 4593060 4629084 4683120 4750902 4872720 4975815 4980660 5014841 5078320 5111730 5177265 5278780 5307536 5395715 5522416 5713110 5786355 5970978 5976792 6124080 6172112 6212718 6285240 6334536 6474858 6557869 6634420 6640880 6815640 6903020 6943626 7024680 7309080 7470990 7617480 7715140 7918170 7961304 8178768 8283624 8633144 8973926 9140976 9186120 9258168 9501804 9712287 9951630 9961320 10029682 10223460 10354530 10557560 10791430 11426220 11572710 11877255 11941956 11953584 12425436 12570480 12669072 12949716 13115738 13268840 13460889 13631280 13806040 13887252 14049360 14618160 14927445 14941980 15044523 15234960 15430280 15531795 15836340 15922608 16187145 16567248 17266288 17359065 17947852 18372240 18516336 19003608 19424574 19673607 19903260 19922640 20059364 20446920 20709060 21115120 21582860 22434815 22852440 23145420 23754510 23883912 24850872 25074205 25899432 26231476 26537680 26921778 27612080 27774504 29854890 29883960 30089046 30860560 31063590 31672680 32374290 32789345 34718130 35895704 38007216 38849148 39347214 39806520 40118728 40382667 40893840 41418120 43165720 44869630 45133569 45704880 46290840 47509020 47767824 48561435 49701744 50148410 51798864 52462952 53843556 55549008 59020821 59709780 59767920 60178092 62127180 63345360 64748580 65578690 67304445 69436260 71791408 75222615 77698296 78694428 79613040 80237456 80765334 82836240 85252297 86331440 89739260 90267138 92581680 95018040 97122870 98368035 100296820 104925904 107687112 118041642 119419560 120356184 124254360 129497160 131157380 134608890 138872520 150445230 155396592 157388856 161530668 170504594 179478520 180534276 190036080 194245740 196736070 200593640 201913335 215374224 225667845 236083284 238839120 240712368 248508720 255756891 258994320 262314760 269217780 277745040 295104105 300890460 314777712 323061336 341009188 358957040 361068552 388491480 393472140 401187280 403826670 426261485 451335690 472166568 511513782 524629520 538435560 590208210 601780920 646122672 682018376 722137104 767270673 776982960 786944280 807653340 852522970 902671380 944333136 1023027564 1076871120 1180416420 1203561840 1278784455 1364036752 1534541346 1573888560 1615306680 1705045940 1805342760 2046055128 2360832840 2557568910 3069082692 3230613360 3410091880 3610685520 3836353365 4092110256 4721665680 5115137820 6138165384 6820183760 7672706730 10230275640 12276330768 15345413460 20460551280 30690826920 61381653840
• Sum of all divisors σ(n): 251533900800
• Sum of proper divisors (its aliquot sum) s(n): 190152246960
• 61381653840 is an abundant number, because the sum of its proper divisors (190152246960) is greater than itself. Its abundance is 128770593120

Bases of 61381653840

• Binary: 111001001010101000011011010101010000₂
• Hexadecimal: 0xE4AA1B550
• Base-36: S751V80

Squares and roots of 61381653840

• 61381653840 squared (61381653840²) is 3767707428133586745600
• 61381653840 cubed (61381653840³) is 231268113124092498896031343104000
• The square root of 61381653840 is 247753.2115634427
• The cube root of 61381653840 is 3944.6898434277

Scales and comparisons

• 61,381,653,840 seconds is equal to 1,951 years, 38 weeks, 5 days, 19 hours, 24 minutes.
• To count from 1 to 61,381,653,840 would take you about three thousand, nine hundred three 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 61381653840 cubic inches would be around 328.7 feet tall.

Recreational maths with 61381653840

• 61381653840 backwards is 04835618316
• 61381653840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 61381653840's digits is 45
• More coming soon!