18664129479168

Names of 18664129479168

• Cardinal: 18664129479168 can be written as Eighteen trillion, six hundred sixty-four billion, one hundred twenty-nine million, four hundred seventy-nine thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8664129479168 × 10¹³

Factors of 18664129479168

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 72

Divisors of 18664129479168

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 67 72 96 108 128 134 144 192 201 216 256 268 288 384 402 432 512 536 576 603 768 804 864 1072 1152 1206 1536 1608 1728 1809 2144 2304 2412 3216 3456 3618 4288 4489 4608 4824 6432 6912 7236 8576 8978 9648 12864 13467 13824 14472 17152 17956 19296 25728 26934 28944 34304 35912 38592 40401 51456 53868 57888 71824 77184 80802 102912 107736 115776 121203 143648 154368 161604 215472 231552 242406 287296 300763 308736 323208 430944 463104 484812 574592 601526 646416 861888 902289 926208 969624 1149184 1203052 1292832 1723776 1804578 1939248 2298368 2406104 2585664 2706867 3447552 3609156 3878496 4812208 5171328 5413734 6895104 7218312 7756992 8120601 9624416 10342656 10827468 14436624 15513984 16241202 19248832 20151121 20685312 21654936 28873248 31027968 32482404 38497664 40302242 43309872 57746496 60453363 62055936 64964808 76995328 80604484 86619744 115492992 120906726 129929616 153990656 161208968 173239488 181360089 230985984 241813452 259859232 322417936 346478976 362720178 461971968 483626904 519718464 544080267 644835872 692957952 725440356 967253808 1039436928 1088160534 1289671744 1350125107 1385915904 1450880712 1934507616 2078873856 2176321068 2579343488 2700250214 2901761424 3869015232 4050375321 4157747712 4352642136 5158686976 5400500428 5803522848 7738030464 8100750642 8705284272 10317373952 10801000856 11607045696 12151125963 15476060928 16201501284 17410568544 21602001712 23214091392 24302251926 30952121856 32403002568 34821137088 36453377889 43204003424 46428182784 48604503852 64806005136 69642274176 72906755778 86408006848 92856365568 97209007704 129612010272 139284548352 145813511556 172816013696 194418015408 259224020544 278569096704 291627023112 345632027392 388836030816 518448041088 583254046224 691264054784 777672061632 1036896082176 1166508092448 1555344123264 2073792164352 2333016184896 3110688246528 4666032369792 6221376493056 9332064739584 18664129479168
• Sum of all divisors σ(n): 56084196944160
• Sum of proper divisors (its aliquot sum) s(n): 37420067464992
• 18664129479168 is an abundant number, because the sum of its proper divisors (37420067464992) is greater than itself. Its abundance is 18755937985824

Bases of 18664129479168

• Binary: 100001111100110010100110011101100001000000000₂
• Hexadecimal: 0x10F994CEC200
• Base-36: 6M66KSQO0

Squares and roots of 18664129479168

• 18664129479168 squared (18664129479168²) is 348349729215147958945972224
• 18664129479168 cubed (18664129479168³) is 6501644450104633308418346811376514629632
• The square root of 18664129479168 is 4320200.1665626561
• The cube root of 18664129479168 is 26525.8461393521

Scales and comparisons

• 18,664,129,479,168 seconds is equal to 593,461 years, 30 weeks, 3 days, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,664,129,479,168 would take you about one million, four hundred eighty-three thousand, six 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 18664129479168 cubic inches would be around 2210.5 feet tall.

Recreational maths with 18664129479168

• 18664129479168 backwards is 86197492146681
• 18664129479168 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18664129479168's digits is 72
• More coming soon!