18005732864

Names of 18005732864

• Cardinal: 18005732864 can be written as Eighteen billion, five million, seven hundred thirty-two thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.8005732864 × 10¹⁰

Factors of 18005732864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 257

Divisors of 18005732864

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 97 98 112 128 151 194 196 224 256 302 343 388 392 448 512 604 679 686 776 784 896 1057 1208 1358 1372 1552 1568 1792 2114 2401 2416 2716 2744 3104 3136 3584 4228 4753 4802 4832 5432 5488 6208 6272 7399 8456 9506 9604 9664 10864 10976 12416 12544 14647 14798 16912 19012 19208 19328 21728 21952 24832 25088 29294 29596 33271 33824 38024 38416 38656 43456 43904 49664 51793 58588 59192 66542 67648 76048 76832 77312 86912 87808 102529 103586 117176 118384 133084 135296 152096 153664 173824 175616 205058 207172 232897 234352 236768 266168 270592 304192 307328 347648 362551 410116 414344 465794 468704 473536 532336 541184 608384 614656 717703 725102 820232 828688 931588 937408 947072 1064672 1216768 1229312 1435406 1450204 1640464 1657376 1863176 1874816 1894144 2129344 2433536 2870812 2900408 3280928 3314752 3726352 3749632 3788288 4258688 5023921 5741624 5800816 6561856 6629504 7452704 7499264 8517376 10047842 11483248 11601632 13123712 13259008 14905408 17034752 20095684 22966496 23203264 26247424 26518016 29810816 35167447 40191368 45932992 46406528 52494848 59621632 70334894 80382736 91865984 92813056 119243264 140669788 160765472 183731968 185626112 281339576 321530944 367463936 562679152 643061888 1125358304 1286123776 2250716608 2572247552 4501433216 9002866432 18005732864
• Sum of all divisors σ(n): 42683341008
• Sum of proper divisors (its aliquot sum) s(n): 24677608144
• 18005732864 is an abundant number, because the sum of its proper divisors (24677608144) is greater than itself. Its abundance is 6671875280

Bases of 18005732864

• Binary: 10000110001001110011010111000000000₂
• Hexadecimal: 0x43139AE00
• Base-36: 89S5CE8

Squares and roots of 18005732864

• 18005732864 squared (18005732864²) is 324206415969729642496
• 18005732864 cubed (18005732864³) is 5837574118745815453085198188544
• The square root of 18005732864 is 134185.4420717837
• The cube root of 18005732864 is 2621.0195934539

Scales and comparisons

• 18,005,732,864 seconds is equal to 572 years, 27 weeks, 2 days, 16 hours, 27 minutes, 44 seconds.
• To count from 1 to 18,005,732,864 would take you about one thousand, one hundred forty-five 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 18005732864 cubic inches would be around 218.4 feet tall.

Recreational maths with 18005732864

• 18005732864 backwards is 46823750081
• The number of decimal digits it has is: 11
• The sum of 18005732864's digits is 44
• More coming soon!