21730728448

Names of 21730728448

• Cardinal: 21730728448 can be written as Twenty-one billion, seven hundred thirty million, seven hundred twenty-eight thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 2.1730728448 × 10¹⁰

Factors of 21730728448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 122

Divisors of 21730728448

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 8 11 13 16 17 22 26 32 34 44 52 64 68 79 88 104 128 136 143 158 169 176 187 208 221 256 272 286 289 316 338 352 374 416 442 512 544 572 578 632 676 704 748 832 869 884 1027 1088 1144 1156 1264 1343 1352 1408 1496 1664 1738 1768 1859 2054 2176 2288 2312 2431 2528 2686 2704 2816 2873 2992 3179 3328 3476 3536 3718 3757 4108 4352 4576 4624 4862 5056 5372 5408 5632 5746 5984 6358 6656 6952 7072 7436 7514 8216 8704 9152 9248 9724 10112 10744 10816 11297 11492 11968 12716 13351 13904 14144 14773 14872 15028 16432 17459 18304 18496 19448 20224 21488 21632 22594 22831 22984 23936 25432 26702 27808 28288 29546 29744 30056 31603 32864 34918 36608 36992 38896 40448 41327 42976 43264 45188 45662 45968 47872 48841 50864 53404 55616 56576 59092 59488 60112 63206 65728 69836 73216 73984 77792 82654 85952 86528 90376 91324 91936 95744 97682 101728 106808 111232 113152 118184 118976 120224 126412 131456 139672 146861 147968 155584 165308 171904 180752 182648 183872 192049 195364 203456 213616 222464 226967 236368 237952 240448 251141 252824 262912 279344 293722 296803 311168 330616 343808 361504 365296 367744 384098 390728 406912 427232 444928 453934 472736 475904 480896 502282 505648 525824 537251 558688 587444 593606 622336 661232 687616 723008 730592 735488 768196 781456 813824 854464 907868 945472 951808 961792 1004564 1011296 1074502 1117376 1174888 1187212 1244672 1322464 1446016 1461184 1470976 1536392 1562912 1627648 1708928 1815736 1890944 1923584 2009128 2022592 2149004 2234752 2349776 2374424 2496637 2644928 2892032 2922368 3072784 3125824 3264833 3417856 3631472 3781888 3858439 4018256 4045184 4298008 4469504 4699552 4748848 4993274 5289856 5784064 5844736 6145568 6251648 6529666 6835712 7262944 7563776 7716878 8036512 8090368 8596016 8939008 9399104 9497696 9986548 10579712 11689472 12291136 12503296 13059332 14525888 15433756 16073024 16180736 17192032 18798208 18995392 19973096 21159424 24582272 25006592 26118664 29051776 30867512 32146048 34384064 37596416 37990784 39946192 42442829 49164544 52237328 58103552 61735024 64292096 68768128 75192832 75981568 79892384 84885658 98329088 104474656 116207104 123470048 128584192 137536256 151963136 159784768 169771316 208949312 246940096 275072512 319569536 339542632 417898624 493880192 639139072 679085264 835797248 987760384 1278278144 1358170528 1671594496 1975520768 2716341056 5432682112 10865364224 21730728448
• Sum of all divisors σ(n): 55174236480
• Sum of proper divisors (its aliquot sum) s(n): 33443508032
• 21730728448 is an abundant number, because the sum of its proper divisors (33443508032) is greater than itself. Its abundance is 11712779584

Bases of 21730728448

• Binary: 10100001111010000001001101000000000₂
• Hexadecimal: 0x50F409A00
• Base-36: 9ZDWXDS

Squares and roots of 21730728448

• 21730728448 squared (21730728448²) is 472224558880716488704
• 21730728448 cubed (21730728448³) is 10261783655513436839702683451392
• The square root of 21730728448 is 147413.4608778995
• The cube root of 21730728448 is 2790.5604081467

Scales and comparisons

• 21,730,728,448 seconds is equal to 690 years, 50 weeks, 3 days, 1 hour, 27 minutes, 28 seconds.
• To count from 1 to 21,730,728,448 would take you about one thousand, three hundred eighty-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 21730728448 cubic inches would be around 232.5 feet tall.

Recreational maths with 21730728448

• 21730728448 backwards is 84482703712
• The number of decimal digits it has is: 11
• The sum of 21730728448's digits is 46
• More coming soon!