155791645128916828

Names of 155791645128916828

• Cardinal: 155791645128916828 can be written as One hundred fifty-five quadrillion, seven hundred ninety-one trillion, six hundred forty-five billion, one hundred twenty-eight million, nine hundred sixteen thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 1.55791645128916828 × 10¹⁷

Factors of 155791645128916828

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 739

Divisors of 155791645128916828

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 41 82 164 197 394 499 788 998 1996 8077 16154 20459 32308 38809 40918 77618 81836 98303 155236 196606 249001 393212 498002 996004 1591169 3182338 4030423 6364676 7645373 8060846 10209041 15290746 16121692 19365691 20418082 30581492 38731382 40836164 49053197 77462764 98106394 124251499 196212788 248502998 313460293 497005996 626920586 793993331 1253841172 1587986662 2011181077 3175973324 3815041127 4022362154 5094311459 7630082254 8044724308 9663479809 10188622918 15260164508 19326959618 20377245836 24477545303 38653919236 48955090606 97910181212 156416686207 312833372414 396202672169 625666744828 792405344338 1003579357423 1584810688676 1903705522373 2007158714846 3807411044746 4014317429692 4822076424691 7614822089492 9644152849382 19288305698764 78051926417293 156103852834586 197705133412331 312207705669172 395410266824662 790820533649324 949949055664127 1899898111328254 3799796222656508 38947911282229207 77895822564458414 155791645128916828
• Sum of all divisors σ(n): 281273620347720000
• Sum of proper divisors (its aliquot sum) s(n): 125481975218803172
• 155791645128916828 is a deficient number, because the sum of its proper divisors (125481975218803172) is less than itself. Its deficiency is 30309669910113656

Bases of 155791645128916828

• Binary: 1000101001011110111010110100000010111000011111111101011100₂
• Hexadecimal: 0x2297BAD02E1FF5C
• Base-36: 16LZJ1QOOHNG

Squares and roots of 155791645128916828

• 155791645128916828 squared (155791645128916828²) is 24271036691974354421223668541581584
• 155791645128916828 cubed (155791645128916828³) is 3781224735226988035696405064359677099969763912495552
• The square root of 155791645128916828 is 394704503.5579361463
• The cube root of 155791645128916828 is 538081.4923437099

Scales and comparisons

• 155,791,645,128,916,828 seconds is equal to 4,953,692,419 years, 46 weeks, 5 days, 22 hours, 40 minutes, 28 seconds.
• To count from 1 to 155,791,645,128,916,828 would take you about fourteen billion, eight hundred sixty-one million, seventy-seven thousand, two hundred fifty-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 155791645128916828 cubic inches would be around 44840.1 feet tall.

Recreational maths with 155791645128916828

• 155791645128916828 backwards is 828619821546197551
• The number of decimal digits it has is: 18
• The sum of 155791645128916828's digits is 88
• More coming soon!