21259913808

Names of 21259913808

• Cardinal: 21259913808 can be written as Twenty-one billion, two hundred fifty-nine million, nine hundred thirteen thousand, eight hundred eight.

Scientific notation

• Scientific notation: 2.1259913808 × 10¹⁰

Factors of 21259913808

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 104

Divisors of 21259913808

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 19 21 24 28 38 42 48 49 56 57 73 76 84 98 112 114 133 146 147 152 168 196 219 228 266 292 294 304 336 343 361 392 399 438 456 511 532 584 588 686 722 784 798 876 912 931 1022 1029 1064 1083 1168 1176 1372 1387 1444 1533 1596 1752 1862 2044 2058 2128 2166 2352 2401 2527 2744 2774 2793 2888 3066 3192 3504 3577 3724 4088 4116 4161 4332 4802 5054 5488 5548 5586 5776 6132 6384 6517 7154 7203 7448 7581 8176 8232 8322 8664 9604 9709 10108 10731 11096 11172 12264 13034 14308 14406 14896 15162 16464 16644 16807 17328 17689 19208 19418 19551 20216 21462 22192 22344 24528 25039 26068 26353 28616 28812 29127 30324 33288 33614 35378 38416 38836 39102 40432 42924 44688 45619 50078 50421 52136 52706 53067 57232 57624 58254 60648 66576 67228 67963 70756 75117 77672 78204 79059 85848 91238 100156 100842 104272 105412 106134 115248 116508 121296 123823 134456 135926 136857 141512 150234 155344 156408 158118 171696 175273 182476 184471 200312 201684 203889 210824 212268 233016 247646 268912 271852 273714 283024 300468 312816 316236 319333 350546 364952 368942 371469 400624 403368 407778 421648 424536 466032 475741 495292 525819 543704 547428 553413 600936 632472 638666 701092 729904 737884 742938 806736 815556 849072 866761 951482 957999 990584 1051638 1087408 1094856 1106826 1201872 1226911 1264944 1277332 1291297 1402184 1427223 1475768 1485876 1631112 1733522 1902964 1915998 1981168 2103276 2189712 2213652 2453822 2554664 2582594 2600283 2804368 2854446 2951536 2971752 3262224 3330187 3467044 3680733 3805928 3831996 3873891 4206552 4427304 4907644 5109328 5165188 5200566 5708892 5943504 6067327 6660374 6934088 7361466 7611856 7663992 7747782 8413104 8854608 9039079 9815288 9990561 10330376 10401132 11417784 12134654 13320748 13868176 14722932 15327984 15495564 18078158 18201981 19630576 19981122 20660752 20802264 22835568 23311309 24269308 26641496 27117237 29445864 30991128 36156316 36403962 39962244 41604528 46622618 48538616 53282992 54234474 58891728 61982256 63273553 69933927 72312632 72807924 79924488 93245236 97077232 108468948 126547106 139867854 144625264 145615848 159848976 186490472 189820659 216937896 253094212 279735708 291231696 372980944 379641318 433875792 442914871 506188424 559471416 759282636 885829742 1012376848 1118942832 1328744613 1518565272 1771659484 2657489226 3037130544 3543318968 5314978452 7086637936 10629956904 21259913808
• Sum of all divisors σ(n): 68550666048
• Sum of proper divisors (its aliquot sum) s(n): 47290752240
• 21259913808 is an abundant number, because the sum of its proper divisors (47290752240) is greater than itself. Its abundance is 26030838432

Bases of 21259913808

• Binary: 10011110011001100001000101001010000₂
• Hexadecimal: 0x4F3308A50
• Base-36: 9RLLQHC

Squares and roots of 21259913808

• 21259913808 squared (21259913808²) is 451983935123589060864
• 21259913808 cubed (21259913808³) is 9609139503328167261580306010112
• The square root of 21259913808 is 145807.7974869657
• The cube root of 21259913808 is 2770.2597995149

Scales and comparisons

• 21,259,913,808 seconds is equal to 675 years, 51 weeks, 6 days, 19 hours, 36 minutes, 48 seconds.
• To count from 1 to 21,259,913,808 would take you about one thousand, three hundred fifty-one 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 21259913808 cubic inches would be around 230.9 feet tall.

Recreational maths with 21259913808

• 21259913808 backwards is 80831995212
• 21259913808 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21259913808's digits is 48
• More coming soon!