168168521728

Names of 168168521728

• Cardinal: 168168521728 can be written as One hundred sixty-eight billion, one hundred sixty-eight million, five hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.68168521728 × 10¹¹

Factors of 168168521728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 24
• Sum of prime factors: 161

Divisors of 168168521728

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 4 8 16 17 32 34 53 64 68 89 106 128 136 178 212 256 272 356 424 512 544 712 848 901 1024 1088 1424 1513 1696 1802 2048 2176 2848 3026 3392 3604 4096 4352 4717 5696 6052 6784 7208 8192 8704 9434 11392 12104 13568 14416 16384 17408 18868 22784 24208 27136 28832 32768 34816 37736 45568 48416 54272 57664 65536 69632 75472 80189 91136 96832 108544 115328 131072 139264 150944 160378 182272 193664 217088 230656 262144 278528 301888 320756 364544 387328 434176 461312 524288 557056 603776 641512 729088 774656 868352 922624 1048576 1114112 1207552 1283024 1458176 1549312 1736704 1845248 2097152 2228224 2415104 2566048 2916352 3098624 3473408 3690496 4456448 4830208 5132096 5832704 6197248 6946816 7380992 8912896 9660416 10264192 11665408 12394496 13893632 14761984 17825792 19320832 20528384 23330816 24788992 27787264 29523968 35651584 38641664 41056768 46661632 49577984 55574528 59047936 77283328 82113536 93323264 99155968 111149056 118095872 154566656 164227072 186646528 198311936 236191744 309133312 328454144 396623872 472383488 618266624 656908288 793247744 944766976 1236533248 1313816576 1586495488 1889533952 2473066496 2627633152 3172990976 4946132992 5255266304 9892265984 10510532608 21021065216 42042130432 84084260864 168168521728
• Sum of all divisors σ(n): 366917626440
• Sum of proper divisors (its aliquot sum) s(n): 198749104712
• 168168521728 is an abundant number, because the sum of its proper divisors (198749104712) is greater than itself. Its abundance is 30580582984

Bases of 168168521728

• Binary: 10011100100111101000000000000000000000₂
• Hexadecimal: 0x2727A00000
• Base-36: 259771TS

Squares and roots of 168168521728

• 168168521728 squared (168168521728²) is 28280651700180808105984
• 168168521728 cubed (168168521728³) is 4755915389923856369499768830820352
• The square root of 168168521728 is 410083.5545690661
• The cube root of 168168521728 is 5519.6927309187

Scales and comparisons

• 168,168,521,728 seconds is equal to 5,347 years, 12 weeks, 2 days, 22 hours, 15 minutes, 28 seconds.
• To count from 1 to 168,168,521,728 would take you about ten thousand, six hundred ninety-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 168168521728 cubic inches would be around 460 feet tall.

Recreational maths with 168168521728

• 168168521728 backwards is 827125861861
• The number of decimal digits it has is: 12
• The sum of 168168521728's digits is 55
• More coming soon!