21210947507340

Names of 21210947507340

• Cardinal: 21210947507340 can be written as Twenty-one trillion, two hundred ten billion, nine hundred forty-seven million, five hundred seven thousand, three hundred forty.

Scientific notation

• Scientific notation: 2.121094750734 × 10¹³

Factors of 21210947507340

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 292734

Divisors of 21210947507340

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 31 36 45 54 60 61 62 71 90 93 108 122 124 135 142 155 180 183 186 213 244 270 279 284 305 310 355 366 372 426 465 540 549 558 610 620 639 710 732 837 852 915 930 1065 1098 1116 1220 1278 1395 1420 1647 1674 1830 1860 1891 1917 2130 2196 2201 2556 2745 2790 3195 3294 3348 3660 3782 3834 4185 4260 4331 4402 5490 5580 5673 6390 6588 6603 7564 7668 8235 8370 8662 8804 9455 9585 10980 11005 11346 12780 12993 13206 16470 16740 17019 17324 18910 19170 19809 21655 22010 22692 25986 26412 28365 32940 33015 34038 37820 38340 38979 39618 43310 44020 51057 51972 56730 59427 64965 66030 68076 77958 79236 85095 86620 99045 102114 113460 116937 118854 129930 132060 134261 155916 170190 194895 198090 204228 233874 237708 255285 259860 268522 292561 297135 340380 389790 396180 402783 467748 510570 537044 584685 585122 594270 671305 779580 805566 877683 1021140 1169370 1170244 1188540 1208349 1342610 1462805 1611132 1755366 2013915 2338740 2416698 2633049 2685220 2925610 3510732 3625047 4027830 4388415 4833396 5266098 5851220 6041745 7250094 7899147 8055660 8776830 9069391 10532196 12083490 13165245 14500188 15798294 17553660 17846221 18125235 18138782 20771831 24166980 26330490 27208173 31596588 35692442 36250470 36277564 39495735 41543662 45346955 52660980 53538663 54416346 62315493 71384884 72500940 78991470 81624519 83087324 89231105 90693910 103859155 107077326 108832692 124630986 136040865 157982940 160615989 163249038 178462210 181387820 186946479 207718310 214154652 244873557 249261972 267693315 272081730 311577465 321231978 326498076 356924420 373892958 408122595 415436620 481847967 489747114 535386630 544163460 553232851 560839437 623154930 642463956 643926761 747785916 803079945 816245190 934732395 963695934 979494228 1070773260 1106465702 1121678874 1224367785 1246309860 1267081691 1287853522 1606159890 1632490380 1659698553 1869464790 1927391868 1931780283 2212931404 2243357748 2409239835 2448735570 2534163382 2575707044 2766164255 2804197185 3212319780 3219633805 3319397106 3738929580 3801245073 3863560566 4818479670 4897471140 4979095659 5068326764 5532328510 5608394370 5795340849 6335408455 6439267610 6638794212 7602490146 7727121132 8298492765 9636959340 9658901415 9958191318 11064657020 11216788740 11403735219 11590681698 12670816910 12878535220 14937286977 15204980292 16596985530 17386022547 19006225365 19317802830 19916382636 22807470438 23181363396 24895478295 25341633820 28976704245 29874573954 33193971060 34211205657 34772045094 38012450730 38635605660 39279532421 45614940876 49790956590 57018676095 57953408490 59749147908 68422411314 69544090188 74686434885 76024901460 78559064842 86930112735 99581913180 114037352190 115906816980 117838597263 136844822628 149372869770 157118129684 171056028285 173860225470 196397662105 228074704380 235677194526 298745739540 342112056570 347720450940 353515791789 392795324210 471354389052 589192986315 684224113140 707031583578 785590648420 1060547375367 1178385972630 1414063167156 1767578958945 2121094750734 2356771945260 3535157917890 4242189501468 5302736876835 7070315835780 10605473753670 21210947507340
• Sum of all divisors σ(n): 70210386247680
• Sum of proper divisors (its aliquot sum) s(n): 48999438740340
• 21210947507340 is an abundant number, because the sum of its proper divisors (48999438740340) is greater than itself. Its abundance is 27788491233000

Bases of 21210947507340

• Binary: 100110100101010001110111111011101010010001100₂
• Hexadecimal: 0x134A8EFDD48C
• Base-36: 7IO6AHU30

Squares and roots of 21210947507340

• 21210947507340 squared (21210947507340²) is 449904294159132959353875600
• 21210947507340 cubed (21210947507340³) is 9542896366736223365502725194788446904000
• The square root of 21210947507340 is 4605534.4431824631
• The cube root of 21210947507340 is 27681.3132347807

Scales and comparisons

• 21,210,947,507,340 seconds is equal to 674,442 years, 27 weeks, 15 hours, 9 minutes.
• To count from 1 to 21,210,947,507,340 would take you about one million, six hundred eighty-six thousand, one hundred six 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 21210947507340 cubic inches would be around 2306.8 feet tall.

Recreational maths with 21210947507340

• 21210947507340 backwards is 04370574901212
• 21210947507340 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21210947507340's digits is 45
• More coming soon!