161491216105472

Names of 161491216105472

• Cardinal: 161491216105472 can be written as One hundred sixty-one trillion, four hundred ninety-one billion, two hundred sixteen million, one hundred five thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.61491216105472 × 10¹⁴

Factors of 161491216105472

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 3204

Divisors of 161491216105472

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 352 484 512 704 968 1024 1408 1936 2048 2816 3191 3872 4096 5632 6382 7744 8192 11264 12764 15488 16384 22528 25528 30976 32768 35101 45056 51056 61952 65536 70202 90112 102112 123904 131072 140404 180224 204224 247808 280808 360448 386111 408448 495616 561616 720896 772222 816896 991232 1123232 1441792 1544444 1633792 1982464 2246464 3088888 3267584 3964928 4492928 6177776 6535168 7929856 8985856 10182481 12355552 13070336 15859712 17971712 20364962 24711104 26140672 35943424 40729924 49422208 52281344 71886848 81459848 98844416 104562688 112007291 143773696 162919696 197688832 209125376 224014582 287547392 325839392 395377664 418250752 448029164 575094784 651678784 790755328 896058328 1150189568 1232080201 1303357568 1581510656 1792116656 2300379136 2464160402 2606715136 3163021312 3584233312 4600758272 4928320804 5213430272 6326042624 7168466624 9856641608 10426860544 12652085248 14336933248 19713283216 20853721088 25304170496 28673866496 39426566432 41707442176 50608340992 57347732992 78853132864 83414884352 114695465984 157706265728 166829768704 229390931968 315412531456 333659537408 458781863936 630825062912 667319074816 917563727872 1261650125824 1334638149632 1835127455744 2523300251648 3670254911488 5046600503296 7340509822976 10093201006592 14681019645952 20186402013184 40372804026368 80745608052736 161491216105472
• Sum of all divisors σ(n): 355123682672787
• Sum of proper divisors (its aliquot sum) s(n): 193632466567315
• 161491216105472 is an abundant number, because the sum of its proper divisors (193632466567315) is greater than itself. Its abundance is 32141250461843

Bases of 161491216105472

• Binary: 100100101110000000011010100100100000000000000000₂
• Hexadecimal: 0x92E01A920000
• Base-36: 1L8S1GHMGW

Squares and roots of 161491216105472

• 161491216105472 squared (161491216105472²) is 26079412879224259079028342784
• 161491216105472 cubed (161491216105472³) is 4211596101182634570568868228236262714114048
• The square root of 161491216105472 is 12707919.4247316503
• The cube root of 161491216105472 is 54456.4886955815

Scales and comparisons

• 161,491,216,105,472 seconds is equal to 5,134,921 years, 7 weeks, 4 days, 12 hours, 24 minutes, 32 seconds.
• To count from 1 to 161,491,216,105,472 would take you about twelve million, eight hundred thirty-seven thousand, three hundred two 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 161491216105472 cubic inches would be around 4538 feet tall.

Recreational maths with 161491216105472

• 161491216105472 backwards is 274501612194161
• The number of decimal digits it has is: 15
• The sum of 161491216105472's digits is 50
• More coming soon!