21397872917148

Names of 21397872917148

• Cardinal: 21397872917148 can be written as Twenty-one trillion, three hundred ninety-seven billion, eight hundred seventy-two million, nine hundred seventeen thousand, one hundred forty-eight.

Scientific notation

• Scientific notation: 2.1397872917148 × 10¹³

Factors of 21397872917148

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2175

Divisors of 21397872917148

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 127 156 182 241 254 273 364 381 482 499 508 546 723 762 889 964 998 1092 1283 1446 1497 1524 1651 1687 1778 1996 2566 2667 2892 2994 3133 3302 3374 3493 3556 3849 4953 5061 5132 5334 5988 6266 6487 6604 6748 6986 7698 8981 9399 9906 10122 10479 10668 11557 12532 12974 13972 15396 16679 17962 18798 19461 19812 20244 20958 21931 23114 25948 26943 30607 33358 34671 35924 37596 38922 41916 43862 45409 46228 50037 53886 61214 63373 65793 66716 69342 77844 87724 90818 91821 100074 107772 116753 120259 122428 126746 131586 136227 138684 162941 181636 183642 190119 200148 214249 233506 240518 253492 263172 272454 309203 325882 350259 360777 367284 380238 397891 428498 443611 467012 481036 488823 544908 618406 640217 642747 651764 700518 721554 760476 795782 823849 841813 856996 887222 927609 977646 1140587 1193673 1236812 1280434 1285494 1330833 1401036 1443108 1563367 1591564 1647698 1683626 1774444 1855218 1920651 1955292 2118233 2164421 2281174 2387346 2471547 2525439 2560868 2570988 2661666 2785237 3126734 3295396 3367252 3421761 3710436 3841302 4019639 4236466 4328842 4481519 4562348 4690101 4774692 4943094 5050878 5323332 5570474 5766943 6253468 6354699 6493263 6843522 7682604 8039278 8322821 8355711 8472932 8657684 8963038 9380202 9886188 10101756 10943569 11140948 11533886 12058917 12709398 12986526 13444557 13687044 14827631 15272893 16078556 16645642 16711422 17300829 17926076 18760404 21887138 23067772 24117834 24968463 25418796 25973052 26889114 28137473 29655262 30545786 32830707 33291284 33422844 34601658 39268781 43774276 44482893 45818679 48235668 49936926 53778228 56274946 58259747 59310524 61091572 65661414 69203316 78537562 81307559 84412419 88965786 91637358 99873852 106910251 112549892 116519494 117806343 131322828 154292297 157075124 162615118 168824838 174779241 177931572 183274716 198547609 213820502 233038988 235612686 243922677 274881467 308584594 320730753 325230236 337649676 349558482 397095218 427641004 462876891 471225372 487845354 510494153 549762934 569152913 595642827 617169188 641461506 699116964 794190436 824644401 925753782 975690708 1020988306 1056998267 1080046079 1099525868 1138305826 1191285654 1282923012 1389833263 1531482459 1649288802 1707458739 1851507564 2005799861 2041976612 2113996534 2160092158 2276611652 2382571308 2779666526 3062964918 3170994801 3240138237 3298577604 3414917478 3573459071 4011599722 4169499789 4227993068 4320184316 5559333052 6017399583 6125929836 6341989602 6480276474 6829834956 7146918142 7398987869 8023199444 8338999578 10720377213 12034799166 12683979204 12960552948 14040599027 14293836284 14797975738 16677999156 19595121719 21440754426 22196963607 24069598332 28081198054 29595951476 39190243438 42121797081 42881508852 44393927214 56162396108 58785365157 78380486876 84243594162 88787854428 117570730314 137165852033 168487188324 235141460628 254736582347 274331704066 411497556099 509473164694 548663408132 764209747041 822995112198 1018946329388 1528419494082 1645990224396 1783156076429 3056838988164 3566312152858 5349468229287 7132624305716 10698936458574 21397872917148
• Sum of all divisors σ(n): 62364352512000
• Sum of proper divisors (its aliquot sum) s(n): 40966479594852
• 21397872917148 is an abundant number, because the sum of its proper divisors (40966479594852) is greater than itself. Its abundance is 19568606677704

Bases of 21397872917148

• Binary: 100110111011000010100100111010011101010011100₂
• Hexadecimal: 0x1376149D3A9C
• Base-36: 7L21P23DO

Squares and roots of 21397872917148

• 21397872917148 squared (21397872917148²) is 457868965378415859272453904
• 21397872917148 cubed (21397872917148³) is 9797421933873379978365330263704841145792
• The square root of 21397872917148 is 4625783.4922473403
• The cube root of 21397872917148 is 27762.3910973025

Scales and comparisons

• 21,397,872,917,148 seconds is equal to 680,386 years, 8 weeks, 6 days, 4 hours, 5 minutes, 48 seconds.
• To count from 1 to 21,397,872,917,148 would take you about one million, seven hundred thousand, nine hundred sixty-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 21397872917148 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21397872917148

• 21397872917148 backwards is 84171927879312
• The number of decimal digits it has is: 14
• The sum of 21397872917148's digits is 69
• More coming soon!