161421437646

Names of 161421437646

• Cardinal: 161421437646 can be written as One hundred sixty-one billion, four hundred twenty-one million, four hundred thirty-seven thousand, six hundred forty-six.

Scientific notation

• Scientific notation: 1.61421437646 × 10¹¹

Factors of 161421437646

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3201

Divisors of 161421437646

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 37 42 43 49 63 74 86 98 111 126 129 147 222 258 259 294 301 333 387 441 518 602 666 774 777 882 903 1369 1554 1591 1806 1813 2107 2331 2709 2738 3109 3182 3626 4107 4214 4662 4773 5418 5439 6218 6321 8214 9327 9546 9583 10878 11137 12321 12642 14319 16317 18654 18963 19166 21763 22274 24642 27981 28638 28749 32634 33411 37926 43526 55962 57498 58867 65289 66822 67081 77959 86247 100233 115033 117734 130578 133687 134162 152341 155918 172494 176601 195867 200466 201243 230066 233877 267374 304682 345099 353202 391734 401061 402486 412069 457023 467754 529803 603729 690198 701631 802122 805231 824138 914046 935809 1035297 1059606 1203183 1207458 1236207 1371069 1403262 1610462 1871618 2070594 2406366 2415693 2472414 2742138 2807427 2884483 3708621 4256221 4831386 4946419 5614854 5636617 5768966 6550663 7247079 7417242 8422281 8512442 8653449 9892838 11273234 12768663 13101326 14494158 14839257 16844562 16909851 17306898 19651989 25537326 25960347 29678514 29793547 33819702 34624933 38305989 39303978 44517771 50729553 51920694 58955967 59587094 69249866 76611978 89035542 89380641 101459106 103874799 117911934 178761282 183017503 207749598 208554829 242374531 268141923 311624397 366035006 417109658 484749062 536283846 549052509 623248794 625664487 727123593 1098105018 1251328974 1281122521 1454247186 1647157527 1876993461 2181370779 2562245042 3294315054 3753986922 3843367563 4362741558 7686735126 8967857647 11530102689 17935715294 23060205378 26903572941 53807145882 80710718823 161421437646
• Sum of all divisors σ(n): 428002815240
• Sum of proper divisors (its aliquot sum) s(n): 266581377594
• 161421437646 is an abundant number, because the sum of its proper divisors (266581377594) is greater than itself. Its abundance is 105159939948

Bases of 161421437646

• Binary: 10010110010101011101111010101011001110₂
• Hexadecimal: 0x259577AACE
• Base-36: 225M5MFI

Squares and roots of 161421437646

• 161421437646 squared (161421437646²) is 26056880531701466021316
• 161421437646 cubed (161421437646³) is 4206139115997319523646648400862136
• The square root of 161421437646 is 401772.8682302975
• The cube root of 161421437646 is 5444.8644229055

Scales and comparisons

• 161,421,437,646 seconds is equal to 5,132 years, 36 weeks, 3 days, 16 hours, 14 minutes, 6 seconds.
• To count from 1 to 161,421,437,646 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 161421437646 cubic inches would be around 453.7 feet tall.

Recreational maths with 161421437646

• 161421437646 backwards is 646734124161
• The number of decimal digits it has is: 12
• The sum of 161421437646's digits is 45
• More coming soon!