21948642720

Names of 21948642720

• Cardinal: 21948642720 can be written as Twenty-one billion, nine hundred forty-eight million, six hundred forty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.194864272 × 10¹⁰

Factors of 21948642720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1377

Divisors of 21948642720

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 37 40 45 48 60 72 74 80 90 96 111 120 144 148 160 180 185 222 240 288 296 333 360 370 444 480 491 555 592 666 720 740 839 888 982 1110 1184 1332 1440 1473 1480 1665 1678 1776 1964 2220 2455 2517 2664 2946 2960 3330 3356 3552 3928 4195 4419 4440 4910 5034 5328 5892 5920 6660 6712 7365 7551 7856 8390 8838 8880 9820 10068 10656 11784 12585 13320 13424 14730 15102 15712 16780 17676 17760 18167 19640 20136 22095 23568 25170 26640 26848 29460 30204 31043 33560 35352 36334 37755 39280 40272 44190 47136 50340 53280 54501 58920 60408 62086 67120 70704 72668 75510 78560 80544 88380 90835 93129 100680 109002 117840 120816 124172 134240 141408 145336 151020 155215 163503 176760 181670 186258 201360 218004 235680 241632 248344 272505 279387 290672 302040 310430 327006 353520 363340 372516 402720 411949 436008 465645 496688 545010 558774 581344 604080 620860 654012 707040 726680 745032 817515 823898 872016 931290 993376 1090020 1117548 1208160 1235847 1241720 1308024 1396935 1453360 1490064 1635030 1647796 1744032 1862580 2059745 2180040 2235096 2471694 2483440 2616048 2793870 2906720 2980128 3270060 3295592 3707541 3725160 4119490 4360080 4470192 4943388 4966880 5232096 5587740 6179235 6540120 6591184 7415082 7450320 8238980 8720160 8940384 9886776 11175480 12358470 13080240 13182368 14830164 14900640 15242113 16477960 18537705 19773552 22350960 24716940 26160480 29660328 30484226 32955920 37075410 39547104 44701920 45726339 49433880 59320656 60968452 65911840 74150820 76210565 91452678 98867760 118641312 121936904 137179017 148301640 152421130 182905356 197735520 228631695 243873808 274358034 296603280 304842260 365810712 457263390 487747616 548716068 593206560 609684520 685895085 731621424 914526780 1097432136 1219369040 1371790170 1463242848 1829053560 2194864272 2438738080 2743580340 3658107120 4389728544 5487160680 7316214240 10974321360 21948642720
• Sum of all divisors σ(n): 77172600960
• Sum of proper divisors (its aliquot sum) s(n): 55223958240
• 21948642720 is an abundant number, because the sum of its proper divisors (55223958240) is greater than itself. Its abundance is 33275315520

Bases of 21948642720

• Binary: 10100011100001111011011010110100000₂
• Hexadecimal: 0x51C3DB5A0
• Base-36: A2ZNL40

Squares and roots of 21948642720

• 21948642720 squared (21948642720²) is 481742917250208998400
• 21948642720 cubed (21948642720³) is 10573603173615362151210651648000
• The square root of 21948642720 is 148150.7432313453
• The cube root of 21948642720 is 2799.8572512259

Scales and comparisons

• 21,948,642,720 seconds is equal to 697 years, 46 weeks, 5 days, 5 hours, 12 minutes.
• To count from 1 to 21,948,642,720 would take you about one thousand, three hundred ninety-five 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 21948642720 cubic inches would be around 233.3 feet tall.

Recreational maths with 21948642720

• 21948642720 backwards is 02724684912
• 21948642720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21948642720's digits is 45
• More coming soon!