21557083468221

Names of 21557083468221

• Cardinal: 21557083468221 can be written as Twenty-one trillion, five hundred fifty-seven billion, eighty-three million, four hundred sixty-eight thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 2.1557083468221 × 10¹³

Factors of 21557083468221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3383

Divisors of 21557083468221

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 21 27 63 81 103 189 243 309 419 567 721 927 1257 1701 2163 2781 2851 2933 3771 6489 8343 8553 8799 10609 11313 19467 19957 25029 25659 26397 31827 33939 43157 58401 59871 74263 76977 79191 95481 101817 129471 175203 179613 222789 230931 237573 286443 293653 302099 388413 538839 668367 692793 712719 859329 880959 906297 1165239 1194569 1616517 2005101 2055571 2577987 2642877 2718891 3495717 3583707 4445171 4849551 6015303 6166713 7928631 8156673 8361983 10487151 10751121 13335513 18045909 18500139 23785893 24470019 25085949 30246259 31116197 32253363 40006539 55500417 71357679 73410057 75257847 90738777 93348591 96760089 120019617 123040607 166501251 211723813 225773541 272216331 280045773 290280267 360058851 369121821 499503753 635171439 677320623 816648993 840137319 861284249 1080176553 1107365463 1905514317 2031961869 2449946979 2520411957 2583852747 3322096389 5716542951 7349840937 7561235871 7751558241 9966289167 12673182521 17149628853 23254674723 29898867501 38019547563 51448886559 69764024169 88712277647 114058642689 209292072507 266136832941 342175928067 798410498823 1026527784201 2395231496469 3079583352603 7185694489407 21557083468221
• Sum of all divisors σ(n): 37368123287040
• Sum of proper divisors (its aliquot sum) s(n): 15811039818819
• 21557083468221 is a deficient number, because the sum of its proper divisors (15811039818819) is less than itself. Its deficiency is 5746043649402

Bases of 21557083468221

• Binary: 100111001101100100110010011010111000110111101₂
• Hexadecimal: 0x139B264D71BD
• Base-36: 7N36QWQT9

Squares and roots of 21557083468221

• 21557083468221 squared (21557083468221²) is 464707847655847137916904841
• 21557083468221 cubed (21557083468221³) is 10017745860254425324655567523129904557861
• The square root of 21557083468221 is 4642960.6360835109
• The cube root of 21557083468221 is 27831.0762452237

Scales and comparisons

• 21,557,083,468,221 seconds is equal to 685,448 years, 29 weeks, 5 days, 21 hours, 10 minutes, 21 seconds.
• To count from 1 to 21,557,083,468,221 would take you about one million, seven hundred thirteen thousand, six hundred twenty-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 21557083468221 cubic inches would be around 2319.3 feet tall.

Recreational maths with 21557083468221

• 21557083468221 backwards is 12286438075512
• The number of decimal digits it has is: 14
• The sum of 21557083468221's digits is 54
• More coming soon!