3991021290375561

Names of 3991021290375561

• Cardinal: 3991021290375561 can be written as Three quadrillion, nine hundred ninety-one trillion, twenty-one billion, two hundred ninety million, three hundred seventy-five thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 3.991021290375561 × 10¹⁵

Factors of 3991021290375561

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 864

Divisors of 3991021290375561

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 27 39 109 117 327 351 739 981 1417 2217 2943 4251 6651 9607 11881 12753 19953 28821 35643 38259 80551 86463 106929 154453 241653 259389 320787 463359 724959 1047163 1295029 1390077 2174877 3141489 3885087 4170231 8780059 9424467 11655261 16835377 26340177 28273401 34965783 50506131 79020531 114140767 141158161 151518393 237061593 342422301 423474483 454555179 957026431 1027266903 1270423449 1835056093 2871079293 3081800709 3811270347 5505168279 8613237879 12441343603 15386239549 16515504837 25839713637 37324030809 46158718647 49546514511 104315880979 111972092427 138476155941 200021114137 312947642937 335916277281 415428467823 600063342411 938842928811 1356106452727 1800190027233 2816528786433 4068319358181 5400570081699 11370431026711 12204958074543 34111293080133 36614874223629 102333879240399 147815603347243 307001637721197 443446810041729 1330340430125187 3991021290375561
• Sum of all divisors σ(n): 6435095240112000
• Sum of proper divisors (its aliquot sum) s(n): 2444073949736439
• 3991021290375561 is a deficient number, because the sum of its proper divisors (2444073949736439) is less than itself. Its deficiency is 1546947340639122

Bases of 3991021290375561

• Binary: 1110001011011101000000001110010011011100100110001001₂
• Hexadecimal: 0xE2DD00E4DC989
• Base-36: 13AP5VB68W9

Squares and roots of 3991021290375561

• 3991021290375561 squared (3991021290375561²) is 15928250940231007993528426064721
• 3991021290375561 cubed (3991021290375561³) is 63569988620906500271696228237549958131382683481
• The square root of 3991021290375561 is 63174530.3929958867
• The cube root of 3991021290375561 is 158621.2427739493

Scales and comparisons

• 3,991,021,290,375,561 seconds is equal to 126,902,131 years, 51 weeks, 5 days, 19 minutes, 21 seconds.
• To count from 1 to 3,991,021,290,375,561 would take you about three hundred eighty million, seven hundred six thousand, three hundred ninety-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 3991021290375561 cubic inches would be around 13218.4 feet tall.

Recreational maths with 3991021290375561

• 3991021290375561 backwards is 1655730921201993
• The number of decimal digits it has is: 16
• The sum of 3991021290375561's digits is 63
• More coming soon!