18137737728

Names of 18137737728

• Cardinal: 18137737728 can be written as Eighteen billion, one hundred thirty-seven million, seven hundred thirty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8137737728 × 10¹⁰

Factors of 18137737728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 502

Divisors of 18137737728

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 29 32 33 36 44 48 54 58 64 66 72 81 87 88 96 99 108 116 128 132 144 162 174 176 192 198 216 232 243 256 261 264 288 297 319 324 348 352 384 396 432 457 464 486 512 522 528 576 594 638 648 696 704 768 783 792 864 891 914 928 957 972 1044 1056 1152 1188 1276 1296 1371 1392 1408 1536 1566 1584 1728 1782 1828 1856 1914 1944 2088 2112 2304 2349 2376 2552 2592 2673 2742 2784 2816 2871 3132 3168 3456 3564 3656 3712 3828 3888 4113 4176 4224 4608 4698 4752 5027 5104 5184 5346 5484 5568 5632 5742 6264 6336 6912 7047 7128 7312 7424 7656 7776 8226 8352 8448 8613 9396 9504 10054 10208 10368 10692 10968 11136 11484 12339 12528 12672 13253 13824 14094 14256 14624 14848 15081 15312 15552 16452 16704 16896 17226 18792 19008 20108 20416 20736 21384 21936 22272 22968 24678 25056 25344 25839 26506 28188 28512 29248 30162 30624 31104 32904 33408 34452 37017 37584 38016 39759 40216 40832 41472 42768 43872 44544 45243 45936 49356 50112 50688 51678 53012 56376 57024 58496 60324 61248 62208 65808 66816 68904 74034 75168 76032 77517 79518 80432 81664 85536 87744 90486 91872 98712 100224 103356 106024 111051 112752 114048 116992 119277 120648 122496 124416 131616 133632 135729 137808 145783 148068 150336 152064 155034 159036 160864 163328 171072 175488 180972 183744 197424 200448 206712 212048 222102 225504 228096 233984 238554 241296 244992 263232 271458 275616 291566 296136 300672 310068 318072 321728 342144 350976 357831 361944 367488 394848 400896 407187 413424 424096 437349 444204 451008 456192 477108 482592 489984 526464 542916 551232 583132 592272 601344 620136 636144 643456 684288 701952 715662 723888 734976 789696 814374 826848 848192 874698 888408 902016 954216 965184 1052928 1073493 1085832 1102464 1166264 1184544 1202688 1221561 1240272 1272288 1286912 1312047 1368576 1431324 1447776 1469952 1579392 1628748 1653696 1696384 1749396 1776816 1804032 1908432 1930368 2105856 2146986 2171664 2204928 2332528 2369088 2443122 2480544 2544576 2573824 2624094 2862648 2895552 3158784 3220479 3257496 3307392 3392768 3498792 3553632 3608064 3816864 3860736 3936141 4293972 4343328 4409856 4665056 4738176 4886244 4961088 5089152 5248188 5725296 5791104 6317568 6440958 6514992 6614784 6785536 6997584 7107264 7633728 7721472 7872282 8587944 8686656 9330112 9476352 9772488 9922176 10178304 10496376 11450592 11582208 11808423 12881916 13029984 13229568 13995168 14214528 15267456 15744564 17175888 17373312 18660224 18952704 19544976 19844352 20356608 20992752 22901184 23164416 23616846 25763832 26059968 27990336 28429056 30534912 31489128 34351776 34746624 35425269 37320448 39089952 39688704 41985504 45802368 47233692 51527664 52119936 55980672 56858112 61069824 62978256 68703552 69493248 70850538 74640896 78179904 83971008 91604736 94467384 103055328 104239872 111961344 125956512 137407104 141701076 156359808 167942016 183209472 188934768 206110656 208479744 223922688 251913024 274814208 283402152 312719616 335884032 377869536 412221312 503826048 549628416 566804304 625439232 671768064 755739072 824442624 1007652096 1133608608 1511478144 1648885248 2015304192 2267217216 3022956288 4534434432 6045912576 9068868864 18137737728
• Sum of all divisors σ(n): 61396695360
• Sum of proper divisors (its aliquot sum) s(n): 43258957632
• 18137737728 is an abundant number, because the sum of its proper divisors (43258957632) is greater than itself. Its abundance is 25121219904

Bases of 18137737728

• Binary: 10000111001000101111110101000000000₂
• Hexadecimal: 0x43917EA00
• Base-36: 8BYQO00

Squares and roots of 18137737728

• 18137737728 squared (18137737728²) is 328977529889714601984
• 18137737728 cubed (18137737728³) is 5966908155544924215557700452352
• The square root of 18137737728 is 134676.4186040007
• The cube root of 18137737728 is 2627.4091371961

Scales and comparisons

• 18,137,737,728 seconds is equal to 576 years, 37 weeks, 4 days, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 18,137,737,728 would take you about one thousand, one 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 18137737728 cubic inches would be around 219 feet tall.

Recreational maths with 18137737728

• 18137737728 backwards is 82773773181
• 18137737728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18137737728's digits is 54
• More coming soon!