161421675390

Names of 161421675390

• Cardinal: 161421675390 can be written as One hundred sixty-one billion, four hundred twenty-one million, six hundred seventy-five thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.6142167539 × 10¹¹

Factors of 161421675390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4534

Divisors of 161421675390

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 81 85 90 102 135 153 162 170 243 255 270 289 306 405 459 486 510 578 729 765 810 867 918 1215 1377 1445 1458 1530 1734 2295 2430 2601 2754 2890 3645 4131 4335 4507 4590 4913 5202 6885 7290 7803 8262 8670 9014 9826 12393 13005 13521 13770 14739 15606 20655 22535 23409 24565 24786 26010 27042 29478 39015 40563 41310 44217 45070 46818 49130 61965 67605 70227 73695 76619 78030 81126 88434 117045 121689 123930 132651 135210 140454 147390 153238 202815 210681 221085 229857 234090 243378 265302 351135 365067 383095 397953 405630 421362 442170 459714 608445 663255 689571 702270 730134 766190 795906 1053405 1095201 1149285 1193859 1216890 1302523 1326510 1379142 1825335 1989765 2068713 2106810 2190402 2298570 2387718 2605046 3285603 3447855 3581577 3650670 3907569 3979530 4137426 5476005 5969295 6206139 6512615 6571206 6895710 7163154 7815138 10343565 10952010 11722707 11938590 12412278 13025230 16428015 17907885 18618417 19537845 20687130 22142891 23445414 31030695 32856030 35168121 35815770 37236834 39075690 44285782 55855251 58613535 62061390 66428673 70336242 93092085 105504363 110714455 111710502 117227070 132857346 175840605 186184170 199286019 211008726 221428910 279276255 316513089 332143365 351681210 398572038 527521815 558552510 597858057 633026178 664286730 949539267 996430095 1055043630 1195716114 1582565445 1793574171 1899078534 1992860190 2989290285 3165130890 3587148342 4747696335 5380722513 5978580570 8967870855 9495392670 10761445026 16142167539 17935741710 26903612565 32284335078 53807225130 80710837695 161421675390
• Sum of all divisors σ(n): 462963846240
• Sum of proper divisors (its aliquot sum) s(n): 301542170850
• 161421675390 is an abundant number, because the sum of its proper divisors (301542170850) is greater than itself. Its abundance is 140120495460

Bases of 161421675390

• Binary: 10010110010101011110110100101101111110₂
• Hexadecimal: 0x25957B4B7E
• Base-36: 225MAPVI

Squares and roots of 161421675390

• 161421675390 squared (161421675390²) is 26056957285714531652100
• 161421675390 cubed (161421675390³) is 4206157700625706612551166611819000
• The square root of 161421675390 is 401773.1640988481
• The cube root of 161421675390 is 5444.8670959979

Scales and comparisons

• 161,421,675,390 seconds is equal to 5,132 years, 36 weeks, 6 days, 10 hours, 16 minutes, 30 seconds.
• To count from 1 to 161,421,675,390 would take you about ten thousand, two hundred sixty-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 161421675390 cubic inches would be around 453.7 feet tall.

Recreational maths with 161421675390

• 161421675390 backwards is 093576124161
• 161421675390 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 161421675390's digits is 45
• More coming soon!