12138135490

Names of 12138135490

• Cardinal: 12138135490 can be written as Twelve billion, one hundred thirty-eight million, one hundred thirty-five thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.213813549 × 10¹⁰

Factors of 12138135490

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 956

Divisors of 12138135490

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 10 13 17 26 34 59 65 85 118 127 130 170 221 254 295 442 590 635 733 767 1003 1105 1270 1466 1534 1651 2006 2159 2210 3302 3665 3835 4318 5015 7330 7493 7670 8255 9529 10030 10795 12461 13039 14986 16510 19058 21590 24922 26078 28067 37465 43247 47645 56134 62305 65195 74930 86494 93091 95290 97409 124610 127381 130390 140335 161993 186182 194818 216235 254762 280670 323986 432470 465455 487045 562211 636905 735199 809965 930910 974090 1124422 1210183 1273810 1470398 1582547 1619930 1655953 2420366 2811055 3165094 3311906 3675995 5492369 5622110 6050915 7351990 7912735 8279765 9557587 10984738 12101830 15825470 16559530 19115174 20573111 27461845 41146222 47787935 54923690 71400797 93370273 95575870 102865555 142801594 186740546 205731110 357003985 466851365 714007970 933702730 1213813549 2427627098 6069067745 12138135490
• Sum of all divisors σ(n): 25569976320
• Sum of proper divisors (its aliquot sum) s(n): 13431840830
• 12138135490 is an abundant number, because the sum of its proper divisors (13431840830) is greater than itself. Its abundance is 1293705340

Bases of 12138135490

• Binary: 1011010011011111010011111111000010₂
• Hexadecimal: 0x2D37D3FC2
• Base-36: 5KQQDAA

Squares and roots of 12138135490

• 12138135490 squared (12138135490²) is 147334333173597540100
• 12138135490 cubed (12138135490³) is 1788364098389928632464508149000
• The square root of 12138135490 is 110173.2067700673
• The cube root of 12138135490 is 2298.1797501067

Scales and comparisons

• 12,138,135,490 seconds is equal to 385 years, 49 weeks, 4 days, 16 hours, 18 minutes, 10 seconds.
• To count from 1 to 12,138,135,490 would take you about seven hundred seventy-one 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 12138135490 cubic inches would be around 191.5 feet tall.

Recreational maths with 12138135490

• 12138135490 backwards is 09453183121
• The number of decimal digits it has is: 11
• The sum of 12138135490's digits is 37
• More coming soon!