642689820423936

Names of 642689820423936

• Cardinal: 642689820423936 can be written as Six hundred forty-two trillion, six hundred eighty-nine billion, eight hundred twenty million, four hundred twenty-three thousand, nine hundred thirty-six.

Scientific notation

• Scientific notation: 6.42689820423936 × 10¹⁴

Factors of 642689820423936

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 19730357

Divisors of 642689820423936

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 576 648 768 864 1152 1296 1571 1728 2304 2592 3142 3456 4713 5184 6284 6912 9426 10368 12568 14139 18852 20736 25136 28278 37704 42417 50272 56556 75408 84834 100544 113112 127251 150816 169668 201088 226224 254502 301632 339336 402176 452448 509004 603264 678672 904896 1018008 1206528 1357344 1809792 2036016 2714688 3619584 4072032 5429376 8144064 10858752 16288128 19728781 32576256 39457562 59186343 78915124 118372686 157830248 177559029 236745372 315660496 355118058 473490744 532677087 631320992 710236116 946981488 1065354174 1262641984 1420472232 1598031261 1893962976 2130708348 2525283968 2840944464 3196062522 3787925952 4261416696 5050567936 5681888928 6392125044 7575851904 8522833392 11363777856 12784250088 15151703808 17045666784 22727555712 25568500176 30993914951 34091333568 45455111424 51137000352 61987829902 68182667136 92981744853 102274000704 123975659804 136365334272 185963489706 204548001408 247951319608 278945234559 371926979412 409096002816 495902639216 557890469118 743853958824 836835703677 991805278432 1115780938236 1487707917648 1673671407354 1983610556864 2231561876472 2510507111031 2975415835296 3347342814708 3967221113728 4463123752944 5021014222062 5950831670592 6694685629416 7934442227456 8926247505888 10042028444124 11901663341184 13389371258832 17852495011776 20084056888248 23803326682368 26778742517664 35704990023552 40168113776496 53557485035328 71409980047104 80336227552992 107114970070656 160672455105984 214229940141312 321344910211968 642689820423936
• Sum of all divisors σ(n): 1917604702791624
• Sum of proper divisors (its aliquot sum) s(n): 1274914882367688
• 642689820423936 is an abundant number, because the sum of its proper divisors (1274914882367688) is greater than itself. Its abundance is 632225061943752

Bases of 642689820423936

• Binary: 10010010001000010111100010011100100111011100000000₂
• Hexadecimal: 0x24885E2727700
• Base-36: 6BTBMLBK00

Squares and roots of 642689820423936

• 642689820423936 squared (642689820423936²) is 413050205276551103242761732096
• 642689820423936 cubed (642689820423936³) is 265463162255256530588011922407989900377849856
• The square root of 642689820423936 is 25351327.7842391521
• The cube root of 642689820423936 is 86297.9489092035

Scales and comparisons

• 642,689,820,423,936 seconds is equal to 20,435,548 years, 16 weeks, 4 days, 5 hours, 45 minutes, 36 seconds.
• To count from 1 to 642,689,820,423,936 would take you about fifty-one million, eighty-eight thousand, eight hundred seventy 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 642689820423936 cubic inches would be around 7191.5 feet tall.

Recreational maths with 642689820423936

• 642689820423936 backwards is 639324028986246
• 642689820423936 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 642689820423936's digits is 72
• More coming soon!