18443689728

Names of 18443689728

• Cardinal: 18443689728 can be written as Eighteen billion, four hundred forty-three million, six hundred eighty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8443689728 × 10¹⁰

Factors of 18443689728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2568

Divisors of 18443689728

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 608 677 768 912 1216 1354 1824 1867 2031 2432 2708 3648 3734 4062 4864 5416 5601 7296 7468 8124 10832 11202 12863 14592 14936 16248 21664 22404 25726 29872 32496 35473 38589 43328 44808 51452 59744 64992 70946 77178 86656 89616 102904 106419 119488 129984 141892 154356 173312 179232 205808 212838 238976 259968 283784 308712 358464 411616 425676 477952 519936 567568 617424 716928 823232 851352 1135136 1234848 1263959 1433856 1646464 1702704 2270272 2469696 2527918 3292928 3405408 3791877 4540544 4939392 5055836 6810816 7583754 9081088 9878784 10111672 13621632 15167508 20223344 24015221 27243264 30335016 40446688 48030442 60670032 72045663 80893376 96060884 121340064 144091326 161786752 192121768 242680128 288182652 323573504 384243536 485360256 576365304 768487072 970720512 1152730608 1536974144 2305461216 3073948288 4610922432 6147896576 9221844864 18443689728
• Sum of all divisors σ(n): 51774683520
• Sum of proper divisors (its aliquot sum) s(n): 33330993792
• 18443689728 is an abundant number, because the sum of its proper divisors (33330993792) is greater than itself. Its abundance is 14887304064

Bases of 18443689728

• Binary: 10001001011010101000101111100000000₂
• Hexadecimal: 0x44B545F00
• Base-36: 8H0WA2O

Squares and roots of 18443689728

• 18443689728 squared (18443689728²) is 340169690782732713984
• 18443689728 cubed (18443689728³) is 6273984231666423636676262756352
• The square root of 18443689728 is 135807.5466533431
• The cube root of 18443689728 is 2642.1001103777

Scales and comparisons

• 18,443,689,728 seconds is equal to 586 years, 23 weeks, 3 days, 15 hours, 8 minutes, 48 seconds.
• To count from 1 to 18,443,689,728 would take you about one thousand, one hundred seventy-two 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 18443689728 cubic inches would be around 220.2 feet tall.

Recreational maths with 18443689728

• 18443689728 backwards is 82798634481
• The number of decimal digits it has is: 11
• The sum of 18443689728's digits is 60
• More coming soon!