18979229664

Names of 18979229664

• Cardinal: 18979229664 can be written as Eighteen billion, nine hundred seventy-nine million, two hundred twenty-nine thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.8979229664 × 10¹⁰

Factors of 18979229664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 122903

Divisors of 18979229664

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 179 216 288 358 432 537 716 864 1074 1432 1611 2148 2864 3222 4296 4833 5728 6444 8592 9666 12888 17184 19332 25776 38664 51552 77328 122719 154656 245438 368157 490876 736314 981752 1104471 1472628 1963504 2208942 2945256 3313413 3927008 4417884 5890512 6626826 8835768 11781024 13253652 17671536 21966701 26507304 35343072 43933402 53014608 65900103 87866804 106029216 131800206 175733608 197700309 263600412 351467216 395400618 527200824 593100927 702934432 790801236 1054401648 1186201854 1581602472 2108803296 2372403708 3163204944 4744807416 6326409888 9489614832 18979229664
• Sum of all divisors σ(n): 55665792000
• Sum of proper divisors (its aliquot sum) s(n): 36686562336
• 18979229664 is an abundant number, because the sum of its proper divisors (36686562336) is greater than itself. Its abundance is 17707332672

Bases of 18979229664

• Binary: 10001101011010000000000111111100000₂
• Hexadecimal: 0x46B400FE0
• Base-36: 8PVQRC0

Squares and roots of 18979229664

• 18979229664 squared (18979229664²) is 360211158638857552896
• 18979229664 cubed (18979229664³) is 6836530307342415130994212306944
• The square root of 18979229664 is 137765.1249917773
• The cube root of 18979229664 is 2667.4289503533

Scales and comparisons

• 18,979,229,664 seconds is equal to 603 years, 25 weeks, 14 minutes, 24 seconds.
• To count from 1 to 18,979,229,664 would take you about one thousand, two hundred six 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 18979229664 cubic inches would be around 222.3 feet tall.

Recreational maths with 18979229664

• 18979229664 backwards is 46692297981
• The number of decimal digits it has is: 11
• The sum of 18979229664's digits is 63
• More coming soon!