12987792720

Names of 12987792720

• Cardinal: 12987792720 can be written as Twelve billion, nine hundred eighty-seven million, seven hundred ninety-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.298779272 × 10¹⁰

Factors of 12987792720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 310

Divisors of 12987792720

• Number of divisors d(n): 800
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 23 24 27 28 30 35 36 40 42 45 46 48 54 56 59 60 63 69 70 72 80 81 84 90 92 105 108 112 115 118 120 126 135 138 140 144 161 162 168 177 180 184 189 207 210 211 216 230 236 240 252 270 276 280 295 315 322 324 336 345 354 360 368 378 405 413 414 420 422 432 460 472 483 504 531 540 552 560 567 590 621 630 633 644 648 690 708 720 756 805 810 826 828 840 844 885 920 944 945 966 1008 1035 1055 1062 1080 1104 1134 1180 1239 1242 1260 1266 1288 1296 1357 1380 1416 1449 1477 1512 1593 1610 1620 1652 1656 1680 1688 1770 1840 1863 1890 1899 1932 2065 2070 2110 2124 2160 2268 2360 2415 2478 2484 2520 2532 2576 2655 2714 2760 2832 2835 2898 2954 3024 3105 3165 3186 3220 3240 3304 3312 3376 3540 3717 3726 3780 3798 3864 4071 4130 4140 4220 4248 4347 4431 4536 4720 4779 4830 4853 4956 4968 5040 5064 5310 5428 5520 5670 5697 5796 5908 6195 6210 6330 6372 6440 6480 6608 6785 7080 7245 7385 7434 7452 7560 7596 7728 7965 8142 8260 8280 8440 8496 8694 8862 9072 9315 9495 9499 9558 9660 9706 9912 9936 10128 10620 10856 11151 11340 11394 11592 11816 12213 12390 12420 12449 12660 12744 12880 13041 13293 13570 14160 14490 14559 14770 14868 14904 15120 15192 15930 16284 16520 16560 16880 17091 17388 17724 18585 18630 18990 18998 19116 19320 19412 19824 20355 21240 21712 21735 22155 22302 22680 22788 23184 23632 23895 24265 24426 24780 24840 24898 25320 25488 26082 26586 27140 28485 28497 28980 29118 29540 29736 29808 30384 31860 32568 33040 33453 33971 34182 34776 35448 36639 37170 37260 37347 37980 37996 38232 38640 38824 39879 40710 42480 43470 43677 44310 44604 45360 45576 47495 47790 48530 48852 49560 49680 49796 50640 52164 53172 54280 55755 56970 56994 57960 58236 59080 59472 61065 62245 63720 65136 65205 66465 66906 67942 68364 69552 70896 72795 73278 74340 74520 74694 75960 75992 76464 77648 79758 81420 85455 85491 86940 87143 87354 88620 89208 91152 94990 95580 97060 97704 99120 99592 101913 104328 106344 108560 109917 111510 112041 113940 113988 115920 116472 118160 119637 122130 124490 127440 130410 131031 132930 133812 135884 136728 142485 145590 146556 148680 149040 149388 151920 151984 159516 162840 167265 169855 170910 170982 173880 174286 174708 177240 178416 183195 186735 189980 191160 194120 195408 199184 199395 203826 208656 212688 218385 219834 223020 224082 227880 227976 232944 239274 244260 248980 256473 260820 261429 262062 265860 267624 271768 273456 284970 286327 291180 293112 297360 298776 305739 319032 325680 334530 336123 339710 341820 341964 347760 348572 349416 354480 366390 373470 379960 382320 388240 393093 398790 407652 427455 435715 436770 439668 446040 448164 455760 455952 478548 488520 497960 509565 512946 521640 522858 524124 531720 535248 543536 549585 560205 569940 572654 582360 586224 597552 598185 611478 638064 655155 669060 672246 679420 683640 683928 697144 698832 732780 746940 759920 769419 784287 786186 797580 815304 854910 858981 871430 873540 879336 892080 896328 917217 957096 977040 995920 1008369 1019130 1025892 1043280 1045716 1048248 1063440 1099170 1120410 1139880 1145308 1164720 1196370 1222956 1282365 1307145 1310310 1338120 1344492 1358840 1367280 1367856 1394288 1431635 1465560 1493880 1528695 1538838 1568574 1572372 1595160 1630608 1680615 1709820 1717962 1742860 1747080 1758672 1792656 1834434 1914192 1965465 2004289 2016738 2038260 2051784 2091432 2096496 2198340 2240820 2279760 2290616 2352861 2392740 2445912 2564730 2576943 2614290 2620620 2676240 2688984 2717680 2751651 2863270 2931120 2987760 3057390 3077676 3137148 3144744 3190320 3361230 3419640 3435924 3485720 3494160 3668868 3847095 3921435 3930930 4008578 4033476 4076520 4103568 4182864 4294905 4396680 4481640 4581232 4586085 4705722 4785480 4891824 5041845 5129460 5153886 5228580 5241240 5377968 5503302 5726540 6012867 6114780 6155352 6274296 6289488 6722460 6839280 6871848 6971440 7058583 7337736 7694190 7730829 7842870 7861860 8017156 8066952 8153040 8589810 8793360 8963280 9172170 9411444 9570960 10021445 10083690 10258920 10307772 10457160 10482480 11006604 11453080 11764305 12025734 12229560 12310704 12548592 12884715 13444920 13743696 13758255 14117166 14675472 15388380 15461658 15685740 15723720 16034312 16133904 17179620 18038601 18344340 18822888 20042890 20167380 20517840 20615544 20914320 22013208 22906160 23192487 23528610 24051468 24459120 25769430 26889840 27516510 28234332 30064335 30776760 30923316 31371480 31447440 32068624 34359240 35292915 36077202 36688680 37645776 38654145 40085780 40334760 41231088 44026416 46384974 47057220 48102936 51538860 54115803 55033020 56468664 60128670 61553520 61846632 62742960 68718480 70585830 72154404 73377360 77308290 80171560 80669520 90193005 92769948 94114440 96205872 103077720 108231606 110066040 112937328 115962435 120257340 123693264 141171660 144308808 154616580 160343120 162347409 180386010 185539896 188228880 206155440 216463212 220132080 231924870 240514680 270579015 282343320 288617616 309233160 324694818 360772020 371079792 432926424 463849740 481029360 541158030 564686640 618466320 649389636 721544040 811737045 865852848 927699480 1082316060 1298779272 1443088080 1623474090 1855398960 2164632120 2597558544 3246948180 4329264240 6493896360 12987792720
• Sum of all divisors σ(n): 54965053440
• Sum of proper divisors (its aliquot sum) s(n): 41977260720
• 12987792720 is an abundant number, because the sum of its proper divisors (41977260720) is greater than itself. Its abundance is 28989468000

Bases of 12987792720

• Binary: 1100000110001000011111110101010000₂
• Hexadecimal: 0x30621FD50
• Base-36: 5YSLH00

Squares and roots of 12987792720

• 12987792720 squared (12987792720²) is 168682759737684998400
• 12987792720 cubed (12987792720³) is 2190816718910614331872731648000
• The square root of 12987792720 is 113963.9974728863
• The cube root of 12987792720 is 2350.5984725933

Scales and comparisons

• 12,987,792,720 seconds is equal to 412 years, 50 weeks, 3 days, 16 hours, 12 minutes.
• To count from 1 to 12,987,792,720 would take you about eight hundred twenty-five 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 12987792720 cubic inches would be around 195.9 feet tall.

Recreational maths with 12987792720

• 12987792720 backwards is 02729778921
• 12987792720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12987792720's digits is 54
• More coming soon!