18344564728

Names of 18344564728

• Cardinal: 18344564728 can be written as Eighteen billion, three hundred forty-four million, five hundred sixty-four thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8344564728 × 10¹⁰

Factors of 18344564728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 147

Divisors of 18344564728

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 14 28 41 49 56 82 97 98 164 194 196 287 328 343 388 392 574 679 686 776 1148 1358 1372 1681 2009 2296 2716 2744 3362 3977 4018 4753 5432 6724 7954 8036 9506 11767 13448 14063 15908 16072 19012 23534 27839 28126 31816 33271 38024 47068 55678 56252 66542 68921 82369 94136 111356 112504 133084 137842 163057 164738 194873 222712 266168 275684 326114 329476 389746 482447 551368 576583 652228 658952 779492 964894 1141399 1153166 1304456 1364111 1558984 1929788 2282798 2306332 2728222 3377129 3859576 4565596 4612664 5456444 6685337 6754258 7989793 9131192 10912888 13370674 13508516 15979586 23639903 26741348 27017032 31959172 46797359 47279806 53482696 55928551 63918344 93594718 94559612 111857102 187189436 189119224 223714204 327581513 374378872 447428408 655163026 1310326052 2293070591 2620652104 4586141182 9172282364 18344564728
• Sum of all divisors σ(n): 41538672000
• Sum of proper divisors (its aliquot sum) s(n): 23194107272
• 18344564728 is an abundant number, because the sum of its proper divisors (23194107272) is greater than itself. Its abundance is 4849542544

Bases of 18344564728

• Binary: 10001000101011010111101011111111000₂
• Hexadecimal: 0x4456BD7F8
• Base-36: 8FDVOQG

Squares and roots of 18344564728

• 18344564728 squared (18344564728²) is 336523055059781713984
• 18344564728 cubed (18344564728³) is 6173368966008473561730270756352
• The square root of 18344564728 is 135442.1084006003
• The cube root of 18344564728 is 2637.3583121269

Scales and comparisons

• 18,344,564,728 seconds is equal to 583 years, 15 weeks, 4 days, 8 hours, 25 minutes, 28 seconds.
• To count from 1 to 18,344,564,728 would take you about one thousand, one hundred sixty-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 18344564728 cubic inches would be around 219.8 feet tall.

Recreational maths with 18344564728

• 18344564728 backwards is 82746544381
• The number of decimal digits it has is: 11
• The sum of 18344564728's digits is 52
• More coming soon!