13291280640

Names of 13291280640

• Cardinal: 13291280640 can be written as Thirteen billion, two hundred ninety-one million, two hundred eighty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.329128064 × 10¹⁰

Factors of 13291280640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2053

Divisors of 13291280640

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 53 55 60 64 66 72 80 88 90 96 99 106 110 120 128 132 144 159 160 165 176 180 192 198 212 220 240 256 264 265 288 318 320 330 352 360 384 396 424 440 477 480 495 528 530 576 583 636 640 660 704 720 768 792 795 848 880 954 960 990 1056 1060 1152 1166 1272 1280 1320 1408 1440 1584 1590 1696 1749 1760 1908 1920 1979 1980 2112 2120 2304 2332 2385 2544 2640 2816 2880 2915 3168 3180 3392 3498 3520 3816 3840 3958 3960 4224 4240 4664 4770 5088 5247 5280 5760 5830 5937 6336 6360 6784 6996 7040 7632 7916 7920 8448 8480 8745 9328 9540 9895 10176 10494 10560 11520 11660 11874 12672 12720 13568 13992 14080 15264 15832 15840 16960 17490 17811 18656 19080 19790 20352 20988 21120 21769 23320 23748 25344 25440 26235 27984 29685 30528 31664 31680 33920 34980 35622 37312 38160 39580 40704 41976 42240 43538 46640 47496 50880 52470 55968 59370 61056 63328 63360 65307 67840 69960 71244 74624 76320 79160 83952 87076 89055 93280 94992 101760 104887 104940 108845 111936 118740 122112 126656 126720 130614 139920 142488 149248 152640 158320 167904 174152 178110 186560 189984 195921 203520 209774 209880 217690 223872 237480 253312 261228 279840 284976 305280 314661 316640 326535 335808 348304 356220 373120 379968 391842 419548 419760 435380 447744 474960 506624 522456 524435 559680 569952 610560 629322 633280 653070 671616 696608 712440 746240 759936 783684 839096 839520 870760 943983 949920 979605 1044912 1048870 1119360 1139904 1153757 1258644 1266560 1306140 1343232 1393216 1424880 1519872 1567368 1573305 1678192 1679040 1741520 1887966 1899840 1959210 2089824 2097740 2238720 2279808 2307514 2517288 2533120 2612280 2786432 2849760 3134736 3146610 3356384 3358080 3461271 3483040 3775932 3799680 3918420 4179648 4195480 4559616 4615028 4719915 5034576 5224560 5572864 5699520 5768785 6269472 6293220 6712768 6716160 6922542 6966080 7551864 7599360 7836840 8359296 8390960 9230056 9439830 10069152 10383813 10449120 11399040 11537570 12538944 12586440 13425536 13845084 13932160 15103728 15673680 16718592 16781920 17306355 18460112 18879660 20138304 20767626 20898240 22798080 23075140 25077888 25172880 26851072 27690168 27864320 30207456 31347360 33563840 34612710 36920224 37759320 40276608 41535252 41796480 46150280 50155776 50345760 51919065 55380336 60414912 62694720 67127680 69225420 73840448 75518640 80553216 83070504 83592960 92300560 100691520 103838130 110760672 120829824 125389440 134255360 138450840 147680896 151037280 166141008 184601120 201383040 207676260 221521344 241659648 250778880 276901680 295361792 302074560 332282016 369202240 402766080 415352520 443042688 553803360 604149120 664564032 738404480 830705040 886085376 1107606720 1208298240 1329128064 1476808960 1661410080 2215213440 2658256128 3322820160 4430426880 6645640320 13291280640
• Sum of all divisors σ(n): 51139408320
• Sum of proper divisors (its aliquot sum) s(n): 37848127680
• 13291280640 is an abundant number, because the sum of its proper divisors (37848127680) is greater than itself. Its abundance is 24556847040

Bases of 13291280640

• Binary: 1100011000001110001101100100000000₂
• Hexadecimal: 0x31838D900
• Base-36: 63TA9S0

Squares and roots of 13291280640

• 13291280640 squared (13291280640²) is 176658141051238809600
• 13291280640 cubed (13291280640³) is 2348012930052719638053126144000
• The square root of 13291280640 is 115287.8165288943
• The cube root of 13291280640 is 2368.7666284549

Scales and comparisons

• 13,291,280,640 seconds is equal to 422 years, 32 weeks, 2 days, 6 hours, 24 minutes.
• To count from 1 to 13,291,280,640 would take you about eight hundred forty-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 13291280640 cubic inches would be around 197.4 feet tall.

Recreational maths with 13291280640

• 13291280640 backwards is 04608219231
• 13291280640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13291280640's digits is 36
• More coming soon!