668668438936160

Names of 668668438936160

• Cardinal: 668668438936160 can be written as Six hundred sixty-eight trillion, six hundred sixty-eight billion, four hundred thirty-eight million, nine hundred thirty-six thousand, one hundred sixty.

Scientific notation

• Scientific notation: 6.6866843893616 × 10¹⁴

Factors of 668668438936160

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 965969

Divisors of 668668438936160

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 65 68 80 85 104 130 136 160 170 208 221 260 272 340 416 442 520 544 680 884 1040 1105 1360 1768 2080 2210 2720 3536 4420 7072 8840 17680 19991 35360 39982 79964 99955 159928 199910 259883 319856 339847 399820 519766 639712 679694 799640 945941 1039532 1299415 1359388 1599280 1699235 1891882 2079064 2598830 2718776 3198560 3398470 3783764 4158128 4418011 4729705 5197660 5437552 6796940 7567528 8316256 8836022 9459410 10395320 10875104 12297233 13593880 15135056 16080997 17672044 18918820 20790640 22090055 24594466 27187760 30270112 32161994 35344088 37837640 41581280 44180110 49188932 54375520 61486165 64323988 70688176 75675280 80404985 88360220 98377864 122972330 128647976 141376352 151350560 160809970 176720440 196755728 209052961 245944660 257295952 321619940 353440880 393511456 418105922 491889320 514591904 643239880 706881760 836211844 983778640 1045264805 1286479760 1672423688 1967557280 2090529610 2572959520 3344847376 4181059220 6689694752 8362118440 16724236880 18910306531 33448473760 37820613062 75641226124 94551532655 151282452248 189103065310 245833984903 302564904496 321475211027 378206130620 491667969806 605129808992 642950422054 756412261240 983335939612 1229169924515 1285900844108 1512824522480 1607376055135 1966671879224 2458339849030 2571801688216 3025649044960 3214752110270 3933343758448 4179177743351 4916679698060 5143603376432 6429504220540 7866687516896 8358355486702 9833359396120 10287206752864 12859008441080 16716710973404 19666718792240 20895888716755 25718016882160 33433421946808 39333437584480 41791777433510 51436033764320 66866843893616 83583554867020 133733687787232 167167109734040 334334219468080 668668438936160
• Sum of all divisors σ(n): 1801412169830784
• Sum of proper divisors (its aliquot sum) s(n): 1132743730894624
• 668668438936160 is an abundant number, because the sum of its proper divisors (1132743730894624) is greater than itself. Its abundance is 464075291958464

Bases of 668668438936160

• Binary: 10011000000010011010000000110001100111101001100000₂
• Hexadecimal: 0x2602680C67A60
• Base-36: 6L0U1G19I8

Squares and roots of 668668438936160

• 668668438936160 squared (668668438936160²) is 447117481229321134712555545600
• 668668438936160 cubed (668668438936160³) is 298973348194677984176273369137095772368896000
• The square root of 668668438936160 is 25858624.0727568489
• The cube root of 668668438936160 is 87445.3945638593

Scales and comparisons

• 668,668,438,936,160 seconds is equal to 21,261,588 years, 1 week, 4 days, 5 hours, 49 minutes, 20 seconds.
• To count from 1 to 668,668,438,936,160 would take you about fifty-three million, one hundred fifty-three thousand, nine hundred seventy 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 668668438936160 cubic inches would be around 7287.1 feet tall.

Recreational maths with 668668438936160

• 668668438936160 backwards is 061639834866866
• 668668438936160 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 668668438936160's digits is 80
• More coming soon!