990163628806178340865

Names of 990163628806178340865

• Cardinal: 990163628806178340865 can be written as Nine hundred ninety quintillion, one hundred sixty-three quadrillion, six hundred twenty-eight trillion, eight hundred six billion, one hundred seventy-eight million, three hundred forty thousand, eight hundred sixty-five.

Scientific notation

• Scientific notation: 9.90163628806178340865 × 10²⁰

Factors of 990163628806178340865

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1215106227

Divisors of 990163628806178340865

• Number of divisors d(n): 128
• Complete list of divisors:
  1 5 13 19 65 95 247 331 877 1235 1655 2273 4303 4385 6289 11365 11401 16663 21515 29549 31445 43187 57005 81757 83315 147745 215935 216619 290287 408785 561431 752363 1083095 1451435 1993421 2807155 3761815 3773731 5515453 9780719 9967105 14294897 18868655 25914473 27577265 37874999 48903595 71474485 71700889 129572365 185833661 189374995 358504445 492374987 659822351 929168305 1215102709 2461874935 3299111755 6075513545 8577690563 12536624669 15796335217 23086951471 42888452815 62683123345 78981676085 115434757355 162976120697 300130369123 402198996679 814880603485 1065645075793 1500651845615 2010994983395 2761928457557 5228586956827 5328225378965 7641780936901 13809642287785 13853385985309 20247256440067 26142934784135 35905069948241 38208904684505 52476640693583 69266929926545 99343152179713 101236282200335 179525349741205 262383203467915 263214333720871 352728520087483 496715760898565 682196329016579 914198319451367 1316071668604355 1763642600437415 2422211257277489 3410981645082895 4570991597256835 4585470761137279 6701841881662177 11884578152867771 12111056286387445 17369768069575973 22927353805686395 31488746344607357 33509209408310885 46022013888272291 59422890764338855 86848840347879865 87123944461608301 157443731723036785 225806984904487649 230110069441361455 435619722308041505 598286180547539783 801751926158848859 1129034924522438245 2991430902737698915 4008759630794244295 10422775040065035167 15233286597018128321 52113875200325175835 76166432985090641605 198032725761235668173 990163628806178340865
• Sum of all divisors σ(n): 1353148097122348531200
• Sum of proper divisors (its aliquot sum) s(n): 362984468316170190335
• 990163628806178340865 is a deficient number, because the sum of its proper divisors (362984468316170190335) is less than itself. Its deficiency is 627179160490008150530

Bases of 990163628806178340865

• Binary: 1101011010110101000111110111100100100110011000000000000000000000000001₂
• Hexadecimal: 0x35AD47DE4998000001
• Base-36: 5SYSRKJHMO0001

Squares and roots of 990163628806178340865

• 990163628806178340865 squared (990163628806178340865²) is 980424011810619326261741633719844128948225
• 990163628806178340865 cubed (990163628806178340865³) is 970780197303114284203934026676482991311432768262191147986714625
• The square root of 990163628806178340865 is 31466865570.0909991489
• The cube root of 990163628806178340865 is 9967104.0000000011

Scales and comparisons

• 990,163,628,806,178,340,865 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 990,163,628,806,178,340,865 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 990163628806178340865 cubic inches would be around 830592 feet tall.

Recreational maths with 990163628806178340865

• 990163628806178340865 backwards is 568043871608826361099
• The number of decimal digits it has is: 21
• The sum of 990163628806178340865's digits is 100
• More coming soon!