20802456720

Names of 20802456720

• Cardinal: 20802456720 can be written as Twenty billion, eight hundred two million, four hundred fifty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.080245672 × 10¹⁰

Factors of 20802456720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 11387

Divisors of 20802456720

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 27 30 36 37 40 45 46 48 54 60 69 72 74 80 90 92 108 111 115 120 135 138 144 148 180 184 185 207 216 222 230 240 270 276 296 333 345 360 368 370 414 432 444 460 540 552 555 592 621 666 690 720 740 828 851 888 920 999 1035 1080 1104 1110 1242 1332 1380 1480 1656 1665 1702 1776 1840 1998 2070 2160 2220 2484 2553 2664 2760 2960 3105 3312 3330 3404 3996 4140 4255 4440 4968 4995 5106 5328 5520 6210 6660 6808 7659 7992 8280 8510 8880 9936 9990 10212 11317 12420 12765 13320 13616 15318 15984 16560 17020 19980 20424 22634 22977 24840 25530 26640 30636 33951 34040 38295 39960 40848 45268 45954 49680 51060 56585 61272 67902 68080 76590 79920 90536 91908 101853 102120 113170 114885 122544 135804 153180 169755 181072 183816 203706 204240 226340 229770 260291 271608 305559 306360 339510 367632 407412 418729 452680 459540 509265 520582 543216 611118 612720 679020 780873 814824 837458 905360 919080 1018530 1041164 1222236 1256187 1301455 1358040 1527795 1561746 1629648 1674916 1838160 2037060 2082328 2093645 2342619 2444472 2512374 2602910 2716080 3055590 3123492 3349832 3768561 3904365 4074120 4164656 4187290 4685238 4888944 5024748 5205820 6111180 6246984 6280935 6699664 7027857 7537122 7808730 8148240 8374580 9370476 9630767 10049496 10411640 11305683 11713095 12222360 12493968 12561870 14055714 15074244 15617460 16749160 18740952 18842805 19261534 20098992 20823280 22611366 23426190 24444720 25123740 28111428 28892301 30148488 31234920 33498320 35139285 37481904 37685610 38523068 45222732 46852380 48153835 50247480 56222856 56528415 57784602 60296976 62469840 70278570 75371220 77046136 86676903 90445464 93704760 96307670 100494960 112445712 113056830 115569204 140557140 144461505 150742440 154092272 173353806 180890928 187409520 192615340 226113660 231138408 260030709 281114280 288923010 301484880 346707612 385230680 433384515 452227320 462276816 520061418 562228560 577846020 693415224 770461360 866769030 904454640 1040122836 1155692040 1300153545 1386830448 1733538060 2080245672 2311384080 2600307090 3467076120 4160491344 5200614180 6934152240 10401228360 20802456720
• Sum of all divisors σ(n): 76795799040
• Sum of proper divisors (its aliquot sum) s(n): 55993342320
• 20802456720 is an abundant number, because the sum of its proper divisors (55993342320) is greater than itself. Its abundance is 35190885600

Bases of 20802456720

• Binary: 10011010111111011000100110010010000₂
• Hexadecimal: 0x4D7EC4C90
• Base-36: 9K18UC0

Squares and roots of 20802456720

• 20802456720 squared (20802456720²) is 432742205587473158400
• 20802456720 cubed (20802456720³) is 9002101002650752551777704448000
• The square root of 20802456720 is 144230.5679112441
• The cube root of 20802456720 is 2750.2460042187

Scales and comparisons

• 20,802,456,720 seconds is equal to 661 years, 23 weeks, 4 days, 4 hours, 12 minutes.
• To count from 1 to 20,802,456,720 would take you about one thousand, three hundred twenty-two 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 20802456720 cubic inches would be around 229.2 feet tall.

Recreational maths with 20802456720

• 20802456720 backwards is 02765420802
• 20802456720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20802456720's digits is 36
• More coming soon!