18238021648

Names of 18238021648

• Cardinal: 18238021648 can be written as Eighteen billion, two hundred thirty-eight million, twenty-one thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8238021648 × 10¹⁰

Factors of 18238021648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7659

Divisors of 18238021648

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 37 44 53 56 74 77 88 106 112 148 154 176 212 259 296 308 371 407 424 518 583 592 616 742 814 848 1036 1166 1232 1484 1628 1961 2072 2332 2849 2968 3256 3922 4081 4144 4664 5698 5936 6512 7549 7844 8162 9328 11396 13727 15098 15688 16324 21571 22792 27454 30196 31376 32648 43142 45584 52843 54908 60392 65296 83039 86284 105686 109816 120784 150997 166078 172568 211372 219632 279313 301994 332156 345136 400097 422744 558626 581273 603988 664312 800194 845488 1117252 1162546 1207976 1328624 1600388 1955191 2234504 2325092 2415952 2800679 3072443 3200776 3910382 4401067 4469008 4650184 5601358 6144886 6401552 7820764 8802134 9300368 11202716 12289772 14803589 15641528 17604268 21507101 22405432 24579544 29607178 30807469 31283056 35208536 43014202 44810864 49159088 59214356 61614938 70417072 86028404 103625123 118428712 123229876 162839479 172056808 207250246 236857424 246459752 325678958 344113616 414500492 492919504 651357916 829000984 1139876353 1302715832 1658001968 2279752706 2605431664 4559505412 9119010824 18238021648
• Sum of all divisors σ(n): 46105977600
• Sum of proper divisors (its aliquot sum) s(n): 27867955952
• 18238021648 is an abundant number, because the sum of its proper divisors (27867955952) is greater than itself. Its abundance is 9629934304

Bases of 18238021648

• Binary: 10000111111000100100010000000010000₂
• Hexadecimal: 0x43F122010
• Base-36: 8DMG3KG

Squares and roots of 18238021648

• 18238021648 squared (18238021648²) is 332625433632916635904
• 18238021648 cubed (18238021648³) is 6066429859272520890996486049792
• The square root of 18238021648 is 135048.2197142933
• The cube root of 18238021648 is 2632.2425728705

Scales and comparisons

• 18,238,021,648 seconds is equal to 579 years, 47 weeks, 3 days, 5 hours, 7 minutes, 28 seconds.
• To count from 1 to 18,238,021,648 would take you about one thousand, one hundred fifty-nine 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 18238021648 cubic inches would be around 219.4 feet tall.

Recreational maths with 18238021648

• 18238021648 backwards is 84612083281
• The number of decimal digits it has is: 11
• The sum of 18238021648's digits is 43
• More coming soon!