21139449120

Names of 21139449120

• Cardinal: 21139449120 can be written as Twenty-one billion, one hundred thirty-nine million, four hundred forty-nine thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.113944912 × 10¹⁰

Factors of 21139449120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 122

Divisors of 21139449120

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 41 45 48 54 60 71 72 80 82 90 96 108 120 123 135 142 144 160 164 180 205 213 216 240 246 270 284 288 328 355 360 369 410 426 432 480 492 540 568 615 639 656 710 720 738 820 852 864 984 1065 1080 1107 1136 1230 1278 1312 1420 1440 1476 1640 1681 1704 1845 1917 1968 2130 2160 2214 2272 2460 2556 2840 2911 2952 3195 3280 3362 3408 3690 3834 3936 4260 4320 4428 4920 5043 5112 5535 5680 5822 5904 6390 6560 6724 6816 7380 7668 8405 8520 8733 8856 9585 9840 10086 10224 11070 11360 11644 11808 12780 13448 14555 14760 15129 15336 16810 17040 17466 17712 19170 19680 20172 20448 22140 23288 25215 25560 26199 26896 29110 29520 30258 30672 33620 34080 34932 35424 38340 40344 43665 44280 45387 46576 50430 51120 52398 53792 58220 59040 60516 61344 67240 68921 69864 75645 76680 78597 80688 87330 88560 90774 93152 100860 102240 104796 116440 119351 121032 130995 134480 137842 139728 151290 153360 157194 161376 174660 177120 181548 201720 206763 209592 226935 232880 238702 242064 261990 268960 275684 279456 302580 306720 314388 344605 349320 358053 363096 392985 403440 413526 419184 453870 465760 477404 484128 523980 551368 596755 605160 620289 628776 689210 698640 716106 726192 785970 806880 827052 838368 907740 954808 1033815 1047960 1074159 1102736 1193510 1210320 1240578 1257552 1378420 1397280 1432212 1452384 1571940 1654104 1790265 1815480 1860867 1909616 2067630 2095920 2148318 2205472 2387020 2420640 2481156 2515104 2756840 2864424 3101445 3143880 3222477 3308208 3580530 3630960 3721734 3819232 4135260 4191840 4296636 4774040 4893391 4962312 5370795 5513680 5728848 6202890 6287760 6444954 6616416 7161060 7261920 7443468 8270520 8593272 9304335 9548080 9786782 9924624 10741590 11027360 11457696 12405780 12575520 12889908 14322120 14680173 14886936 16112385 16541040 17186544 18608670 19096160 19573564 19849248 21483180 24466955 24811560 25779816 28644240 29360346 29773872 32224770 33082080 34373088 37217340 39147128 42966360 44040519 48933910 49623120 51559632 57288480 58720692 59547744 64449540 73400865 74434680 78294256 85932720 88081038 97867820 99246240 103119264 117441384 128899080 132121557 146801730 148869360 156588512 171865440 176162076 195735640 220202595 234882768 257798160 264243114 293603460 297738720 352324152 391471280 440405190 469765536 515596320 528486228 587206920 660607785 704648304 782942560 880810380 1056972456 1174413840 1321215570 1409296608 1761620760 2113944912 2348827680 2642431140 3523241520 4227889824 5284862280 7046483040 10569724560 21139449120
• Sum of all divisors σ(n): 76905884160
• Sum of proper divisors (its aliquot sum) s(n): 55766435040
• 21139449120 is an abundant number, because the sum of its proper divisors (55766435040) is greater than itself. Its abundance is 34626985920

Bases of 21139449120

• Binary: 10011101100000000100110010100100000₂
• Hexadecimal: 0x4EC026520
• Base-36: 9PLVRC0

Squares and roots of 21139449120

• 21139449120 squared (21139449120²) is 446876309097068774400
• 21139449120 cubed (21139449120³) is 9446718999090878497569558528000
• The square root of 21139449120 is 145394.1165247067
• The cube root of 21139449120 is 2765.0175269509

Scales and comparisons

• 21,139,449,120 seconds is equal to 672 years, 8 weeks, 5 days, 13 hours, 12 minutes.
• To count from 1 to 21,139,449,120 would take you about one thousand, three hundred forty-four 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 21139449120 cubic inches would be around 230.4 feet tall.

Recreational maths with 21139449120

• 21139449120 backwards is 02194493112
• 21139449120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21139449120's digits is 36
• More coming soon!