161231262816

Names of 161231262816

• Cardinal: 161231262816 can be written as One hundred sixty-one billion, two hundred thirty-one million, two hundred sixty-two thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.61231262816 × 10¹¹

Factors of 161231262816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7897

Divisors of 161231262816

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 61 78 96 104 122 156 183 208 244 281 312 366 416 488 562 624 732 793 843 976 1124 1248 1464 1586 1686 1952 2248 2379 2928 3172 3372 3653 4496 4758 5856 6344 6744 7306 7537 8992 9516 10959 12688 13488 14612 15074 17141 19032 21918 22611 25376 26976 29224 30148 34282 38064 43836 45222 51423 58448 60296 68564 76128 87672 90444 97981 102846 116896 120592 137128 175344 180888 195962 205692 222833 241184 274256 293943 350688 361776 391924 411384 445666 459757 548512 587886 668499 723552 783848 822768 891332 919514 1175772 1336998 1379271 1567696 1645536 1782664 1839028 2117897 2351544 2673996 2758542 3135392 3565328 3678056 4235794 4703088 5347992 5517084 5976841 6353691 7130656 7356112 8471588 9406176 10695984 11034168 11953682 12707382 14712224 16943176 17930523 21391968 22068336 23907364 25414764 27532661 33886352 35861046 44136672 47814728 50829528 55065322 67772704 71722092 82597983 95629456 101659056 110130644 129191717 143444184 165195966 191258912 203318112 220261288 258383434 286888368 330391932 387575151 440522576 516766868 573776736 660783864 775150302 881045152 1033533736 1321567728 1550300604 1679492321 2067067472 2643135456 3100601208 3358984642 4134134944 5038476963 6201202416 6717969284 10076953926 12402404832 13435938568 20153907852 26871877136 40307815704 53743754272 80615631408 161231262816
• Sum of all divisors σ(n): 464970614976
• Sum of proper divisors (its aliquot sum) s(n): 303739352160
• 161231262816 is an abundant number, because the sum of its proper divisors (303739352160) is greater than itself. Its abundance is 142508089344

Bases of 161231262816

• Binary: 10010110001010001000011101010001100000₂
• Hexadecimal: 0x258A21D460
• Base-36: 222GXILC

Squares and roots of 161231262816

• 161231262816 squared (161231262816²) is 25995520109242064249856
• 161231262816 cubed (161231262816³) is 4191290534771820291630890626154496
• The square root of 161231262816 is 401536.1289049841
• The cube root of 161231262816 is 5442.7253367801

Scales and comparisons

• 161,231,262,816 seconds is equal to 5,126 years, 34 weeks, 13 hours, 53 minutes, 36 seconds.
• To count from 1 to 161,231,262,816 would take you about ten thousand, two hundred fifty-three 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 161231262816 cubic inches would be around 453.6 feet tall.

Recreational maths with 161231262816

• 161231262816 backwards is 618262132161
• 161231262816 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 161231262816's digits is 39
• More coming soon!