18013747437

Names of 18013747437

• Cardinal: 18013747437 can be written as Eighteen billion, thirteen million, seven hundred forty-seven thousand, four hundred thirty-seven.

Scientific notation

• Scientific notation: 1.8013747437 × 10¹⁰

Factors of 18013747437

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 774

Divisors of 18013747437

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 21 27 31 43 63 93 127 129 189 217 279 301 381 387 563 651 837 889 903 1143 1161 1333 1689 1953 2667 2709 3429 3937 3941 3999 5067 5461 5859 8001 8127 9331 11811 11823 11997 15201 16383 17453 24003 24209 27559 27993 35433 35469 35991 38227 49149 52359 71501 72627 82677 83979 106299 106407 114681 122171 147447 157077 169291 169463 214503 217881 248031 251937 344043 366513 471231 500507 507873 508389 643509 653643 744093 750479 1032129 1099539 1185037 1501521 1523619 1525167 1930527 2216531 2251437 3074543 3298617 3555111 4504563 4570857 4575501 5253353 6649593 6754311 9223629 10665333 13513689 15515717 15760059 19948779 20262933 21521801 27670887 31995999 46547151 47280177 59846337 64565403 83012661 95310833 139641453 141840531 193696209 285932499 418924359 581088627 667175831 857797497 2001527493 2573392491 6004582479 18013747437
• Sum of all divisors σ(n): 32526827520
• Sum of proper divisors (its aliquot sum) s(n): 14513080083
• 18013747437 is a deficient number, because the sum of its proper divisors (14513080083) is less than itself. Its deficiency is 3500667354

Bases of 18013747437

• Binary: 10000110001101100111111100011101101₂
• Hexadecimal: 0x431B3F8ED
• Base-36: 89WX4H9

Squares and roots of 18013747437

• 18013747437 squared (18013747437²) is 324495096724024068969
• 18013747437 cubed (18013747437³) is 5845372716931455668716634982453
• The square root of 18013747437 is 134215.3025440839
• The cube root of 18013747437 is 2621.4084184477

Scales and comparisons

• 18,013,747,437 seconds is equal to 572 years, 40 weeks, 4 days, 10 hours, 43 minutes, 57 seconds.
• To count from 1 to 18,013,747,437 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 18013747437 cubic inches would be around 218.5 feet tall.

Recreational maths with 18013747437

• 18013747437 backwards is 73474731081
• The number of decimal digits it has is: 11
• The sum of 18013747437's digits is 45
• More coming soon!