21018072254800

Names of 21018072254800

• Cardinal: 21018072254800 can be written as Twenty-one trillion, eighteen billion, seventy-two million, two hundred fifty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10180722548 × 10¹³

Factors of 21018072254800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6005

Divisors of 21018072254800

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 25 31 38 40 50 62 76 80 95 100 124 152 155 190 200 248 304 310 361 380 400 475 496 589 620 722 760 775 937 950 1178 1240 1444 1520 1550 1805 1874 1900 2356 2480 2888 2945 3100 3610 3748 3800 4685 4712 5011 5776 5890 6200 7220 7496 7600 9025 9370 9424 10022 11191 11780 12400 14440 14725 14992 17803 18050 18740 20044 22382 23425 23560 25055 28880 29047 29450 35606 36100 37480 40088 44764 46850 47120 50110 55955 58094 58900 71212 72200 74960 80176 89015 89528 93700 95209 100220 111910 116188 117800 125275 142424 144400 145235 155341 178030 179056 187400 190418 200440 223820 232376 235600 250550 279775 284848 290470 310682 338257 356060 374800 380836 400880 445075 447640 464752 476045 501100 551893 559550 580940 621364 676514 712120 726175 761672 776705 890150 895280 952090 1002200 1103786 1119100 1161880 1242728 1353028 1424240 1452350 1523344 1553410 1691285 1780300 1808971 1904180 2004400 2207572 2238200 2323760 2380225 2485456 2706056 2759465 2904700 2951479 3106820 3382570 3560600 3617942 3808360 3883525 4415144 4476400 4695307 4760450 5412112 5518930 5809400 5902958 6213640 6765140 7121200 7235884 7616720 7767050 8456425 8830288 9044855 9390614 9520900 10485967 11037860 11618800 11805916 12427280 13530280 13797325 14471768 14757395 15534100 16912850 18089710 18781228 19041800 20971934 22075720 23476535 23611832 27060560 27594650 28943536 29514790 31068200 33825700 36179420 37562456 38083600 41943868 44151440 45224275 46953070 47223664 52429835 55189300 56078101 59029580 62136400 67651400 72358840 73786975 75124912 83887736 89210833 90448550 93906140 104859670 110378600 112156202 117382675 118059160 135302800 144717680 145554517 147573950 167775472 178421666 180897100 187812280 209719340 220757200 224312404 234765350 236118320 262149175 280390505 291109034 295147900 356843332 361794200 375624560 419438680 446054165 448624808 469530700 524298350 560781010 582218068 590295800 713686664 723588400 727772585 838877360 892108330 897249616 939061400 1048596700 1121562020 1164436136 1180591600 1401952525 1427373328 1455545170 1695005827 1784216660 1878122800 2097193400 2230270825 2243124040 2328872272 2765535823 2803905050 2911090340 3390011654 3568433320 3638862925 4194386800 4460541650 4486248080 5531071646 5607810100 5822180680 6780023308 7136866640 7277725850 8475029135 8921083300 11062143292 11215620200 11644361360 13560046616 13827679115 14555451700 16950058270 17842166600 22124286584 22431240400 27120093232 27655358230 29110903400 33900116540 35684333200 42375145675 44248573168 52545180637 55310716460 58221806800 67800233080 69138395575 84750291350 105090361274 110621432920 135600466160 138276791150 169500582700 210180722548 221242865840 262725903185 276553582300 339001165400 420361445096 525451806370 553107164600 678002330800 840722890192 1050903612740 1106214329200 1313629515925 2101807225480 2627259031850 4203614450960 5254518063700 10509036127400 21018072254800
• Sum of all divisors σ(n): 55082322339072
• Sum of proper divisors (its aliquot sum) s(n): 34064250084272
• 21018072254800 is an abundant number, because the sum of its proper divisors (34064250084272) is greater than itself. Its abundance is 13046177829472

Bases of 21018072254800

• Binary: 100110001110110100110101110110000100101010000₂
• Hexadecimal: 0x131DA6BB0950
• Base-36: 7G7KHJSR4

Squares and roots of 21018072254800

• 21018072254800 squared (21018072254800²) is 441759361307993556123040000
• 21018072254800 cubed (21018072254800³) is 9284930175205707999406853679030592000000
• The square root of 21018072254800 is 4584547.1155611435
• The cube root of 21018072254800 is 27597.1537772447

Scales and comparisons

• 21,018,072,254,800 seconds is equal to 668,309 years, 35 weeks, 4 days, 4 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,018,072,254,800 would take you about one million, six hundred seventy thousand, seven hundred seventy-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 21018072254800 cubic inches would be around 2299.8 feet tall.

Recreational maths with 21018072254800

• 21018072254800 backwards is 00845227081012
• 21018072254800 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21018072254800's digits is 40
• More coming soon!