168640431520

Names of 168640431520

• Cardinal: 168640431520 can be written as One hundred sixty-eight billion, six hundred forty million, four hundred thirty-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.6864043152 × 10¹¹

Factors of 168640431520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 99756

Divisors of 168640431520

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 31 32 40 44 55 62 80 88 110 124 155 160 176 220 248 310 341 352 440 496 620 682 880 961 992 1240 1364 1705 1760 1922 2480 2728 3410 3844 4805 4960 5456 6820 7688 9610 10571 10912 13640 15376 19220 21142 27280 30752 38440 42284 52855 54560 76880 84568 99707 105710 153760 169136 199414 211420 338272 398828 422840 498535 797656 845680 997070 1096777 1595312 1691360 1994140 2193554 3090917 3190624 3988280 4387108 5483885 6181834 7976560 8774216 10967770 12363668 15454585 15953120 17548432 21935540 24727336 30909170 34000087 35096864 43871080 49454672 61818340 68000174 87742160 95818427 98909344 123636680 136000348 170000435 175484320 191636854 247273360 272000696 340000870 383273708 479092135 494546720 544001392 680001740 766547416 958184270 1054002697 1088002784 1360003480 1533094832 1916368540 2108005394 2720006960 3066189664 3832737080 4216010788 5270013485 5440013920 7665474160 8432021576 10540026970 15330948320 16864043152 21080053940 33728086304 42160107880 84320215760 168640431520
• Sum of all divisors σ(n): 449109559584
• Sum of proper divisors (its aliquot sum) s(n): 280469128064
• 168640431520 is an abundant number, because the sum of its proper divisors (280469128064) is greater than itself. Its abundance is 111828696544

Bases of 168640431520

• Binary: 10011101000011110000001100010110100000₂
• Hexadecimal: 0x2743C0C5A0
• Base-36: 25H05PR4

Squares and roots of 168640431520

• 168640431520 squared (168640431520²) is 28439595143251809510400
• 168640431520 cubed (168640431520³) is 4796065597212081371854695927808000
• The square root of 168640431520 is 410658.5339670905
• The cube root of 168640431520 is 5524.8509779561

Scales and comparisons

• 168,640,431,520 seconds is equal to 5,362 years, 12 weeks, 4 days, 20 hours, 18 minutes, 40 seconds.
• To count from 1 to 168,640,431,520 would take you about ten thousand, seven hundred twenty-four 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 168640431520 cubic inches would be around 460.4 feet tall.

Recreational maths with 168640431520

• 168640431520 backwards is 025134046861
• 168640431520 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 168640431520's digits is 40
• More coming soon!