168168972972

Names of 168168972972

• Cardinal: 168168972972 can be written as One hundred sixty-eight billion, one hundred sixty-eight million, nine hundred seventy-two thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.68168972972 × 10¹¹

Factors of 168168972972

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 22518

Divisors of 168168972972

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 11 12 13 14 21 22 26 28 33 39 42 44 52 66 77 78 84 91 132 143 154 156 182 231 273 286 308 364 429 462 546 572 641 858 924 1001 1092 1282 1716 1923 2002 2564 3003 3846 4004 4487 6006 7051 7692 8333 8974 12012 13461 14102 16666 17948 21153 21841 24999 26922 28204 33332 42306 43682 49357 49998 53844 58331 65523 84612 87364 91663 98714 99996 116662 131046 148071 152887 174993 183326 197428 233324 240251 262092 274989 283933 296142 305774 349986 366652 458661 480502 549978 567866 592284 611548 641641 699972 720753 851799 917322 961004 1099956 1135732 1283282 1441506 1681757 1703598 1834644 1924923 1987531 2566564 2883012 3123263 3363514 3407196 3849846 3975062 5045271 5962593 6246526 6727028 7699692 7950124 9369789 10090542 11925186 12493052 14000081 18739578 20181084 21862841 23850372 28000162 37479156 42000243 43725682 56000324 65588523 84000486 87451364 98000567 131177046 154000891 168000972 182001053 196001134 262354092 294001701 308001782 364002106 392002268 462002673 546003159 588003402 616003564 728004212 924005346 1078006237 1092006318 1176006804 1274007371 1848010692 2002011583 2156012474 2184012636 2548014742 3234018711 3822022113 4004023166 4312024948 5096029484 6006034749 6468037422 7644044226 8008046332 12012069498 12936074844 14014081081 15288088452 24024138996 28028162162 42042243243 56056324324 84084486486 168168972972
• Sum of all divisors σ(n): 527697128448
• Sum of proper divisors (its aliquot sum) s(n): 359528155476
• 168168972972 is an abundant number, because the sum of its proper divisors (359528155476) is greater than itself. Its abundance is 191359182504

Bases of 168168972972

• Binary: 10011100100111101001101110001010101100₂
• Hexadecimal: 0x2727A6E2AC
• Base-36: 2597GQ0C

Squares and roots of 168168972972

• 168168972972 squared (168168972972²) is 28280803470457266512784
• 168168972972 cubed (168168972972³) is 4755953674449771852669373188474048
• The square root of 168168972972 is 410084.1047541345
• The cube root of 168168972972 is 5519.6976678827

Scales and comparisons

• 168,168,972,972 seconds is equal to 5,347 years, 13 weeks, 1 day, 3 hours, 36 minutes, 12 seconds.
• To count from 1 to 168,168,972,972 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 168168972972 cubic inches would be around 460 feet tall.

Recreational maths with 168168972972

• 168168972972 backwards is 279279861861
• 168168972972 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 168168972972's digits is 66
• More coming soon!