21237478080

Names of 21237478080

• Cardinal: 21237478080 can be written as Twenty-one billion, two hundred thirty-seven million, four hundred seventy-eight thousand and eighty.

Scientific notation

• Scientific notation: 2.123747808 × 10¹⁰

Factors of 21237478080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 34759

Divisors of 21237478080

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 32 35 39 40 42 48 49 52 56 60 64 65 70 78 80 84 91 96 98 104 105 112 120 130 140 147 156 160 168 182 192 195 196 208 210 224 240 245 260 273 280 294 312 320 336 364 390 392 416 420 448 455 480 490 520 546 560 588 624 637 672 728 735 780 784 832 840 910 960 980 1040 1092 1120 1176 1248 1274 1344 1365 1456 1470 1560 1568 1680 1820 1911 1960 2080 2184 2240 2352 2496 2548 2730 2912 2940 3120 3136 3185 3360 3640 3822 3920 4160 4368 4704 5096 5460 5824 5880 6240 6370 6720 7280 7644 7840 8736 9408 9555 10192 10920 11760 12480 12740 14560 15288 15680 17472 19110 20384 21840 23520 25480 29120 30576 34729 38220 40768 43680 47040 50960 61152 69458 76440 87360 101920 104187 122304 138916 152880 173645 203840 208374 243103 277832 305760 347290 416748 451477 486206 520935 555664 611520 694580 729309 833496 902954 972412 1041870 1111328 1215515 1354431 1389160 1458618 1666992 1701721 1805908 1944824 2083740 2222656 2257385 2431030 2708862 2778320 2917236 3160339 3333984 3403442 3611816 3646545 3889648 4167480 4514770 4862060 5105163 5417724 5556640 5834472 6320678 6667968 6772155 6806884 7223632 7293090 7779296 8334960 8508605 9029540 9481017 9724120 10210326 10835448 11113280 11668944 12641356 13544310 13613768 14447264 14586180 15558592 15801695 16669920 17017210 18059080 18962034 19448240 20420652 21670896 22122373 23337888 25282712 25525815 27088620 27227536 28894528 29172360 31603390 33339840 34034420 36118160 37924068 38896480 40841304 43341792 44244746 46675776 47405085 50565424 51051630 54177240 54455072 58344720 63206780 66367119 68068840 72236320 75848136 77792960 81682608 86683584 88489492 94810170 101130848 102103260 108354480 108910144 110611865 116689440 126413560 132734238 136137680 144472640 151696272 163365216 176978984 189620340 202261696 204206520 216708960 221223730 233378880 252827120 265468476 272275360 303392544 326730432 331835595 353957968 379240680 408413040 433417920 442447460 505654240 530936952 544550720 606785088 663671190 707915936 758481360 816826080 884894920 1011308480 1061873904 1327342380 1415831872 1516962720 1633652160 1769789840 2123747808 2654684760 3033925440 3539579680 4247495616 5309369520 7079159360 10618739040 21237478080
• Sum of all divisors σ(n): 84473917920
• Sum of proper divisors (its aliquot sum) s(n): 63236439840
• 21237478080 is an abundant number, because the sum of its proper divisors (63236439840) is greater than itself. Its abundance is 41998961760

Bases of 21237478080

• Binary: 10011110001110110100011001011000000₂
• Hexadecimal: 0x4F1DA32C0
• Base-36: 9R88UYO

Squares and roots of 21237478080

• 21237478080 squared (21237478080²) is 451030475198480486400
• 21237478080 cubed (21237478080³) is 9578749830439712979227738112000
• The square root of 21237478080 is 145730.8412107745
• The cube root of 21237478080 is 2769.2849653401

Scales and comparisons

• 21,237,478,080 seconds is equal to 675 years, 14 weeks, 6 days, 3 hours, 28 minutes.
• To count from 1 to 21,237,478,080 would take you about one thousand, three hundred fifty 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 21237478080 cubic inches would be around 230.8 feet tall.

Recreational maths with 21237478080

• 21237478080 backwards is 08087473212
• 21237478080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21237478080's digits is 42
• More coming soon!