18345691980

Names of 18345691980

• Cardinal: 18345691980 can be written as Eighteen billion, three hundred forty-five million, six hundred ninety-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.834569198 × 10¹⁰

Factors of 18345691980

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6944

Divisors of 18345691980

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 28 30 33 35 36 42 44 45 55 60 63 66 70 77 84 90 99 105 110 126 132 140 154 165 180 197 198 210 220 231 252 308 315 330 385 394 396 420 462 495 591 630 660 693 770 788 924 985 990 1155 1182 1260 1379 1386 1540 1773 1970 1980 2167 2310 2364 2758 2772 2955 3465 3546 3940 4137 4334 4620 5516 5910 6501 6719 6895 6930 7092 8274 8668 8865 10835 11820 12411 13002 13438 13790 13860 15169 16548 17730 19503 20157 20685 21670 24822 26004 26876 27580 30338 32505 33595 35460 39006 40314 41370 43340 45507 47033 49644 60471 60676 62055 65010 67190 73909 75845 78012 80628 82740 91014 94066 97515 100785 120942 124110 130020 134380 136521 141099 147818 151690 182028 188132 195030 201570 221727 227535 235165 241884 248220 273042 282198 295636 302355 303380 369545 390060 403140 423297 443454 455070 470330 517363 546084 564396 604710 665181 682605 705495 739090 846594 886908 910140 940660 1034726 1108635 1209420 1323643 1330362 1365210 1410990 1478180 1552089 1693188 2069452 2116485 2217270 2586815 2647286 2660724 2730420 2821980 3104178 3325905 3970929 4232970 4434540 4656267 5173630 5294572 6208356 6618215 6651810 7760445 7941858 8465940 9265501 9312534 10347260 11912787 13236430 13303620 14560073 15520890 15883716 18531002 18625068 19854645 23281335 23825574 26472860 27796503 29120146 31041780 37062004 39709290 43680219 46327505 46562670 47651148 55593006 58240292 59563935 72800365 79418580 83389509 87360438 92655010 93125340 101920511 111186012 119127870 131040657 138982515 145600730 166779018 174720876 185310020 203841022 218401095 238255740 262081314 277965030 291201460 305761533 333558036 407682044 416947545 436802190 509602555 524162628 555930060 611523066 655203285 833895090 873604380 917284599 1019205110 1223046132 1310406570 1528807665 1667790180 1834569198 2038410220 2620813140 3057615330 3669138396 4586422995 6115230660 9172845990 18345691980
• Sum of all divisors σ(n): 69742632960
• Sum of proper divisors (its aliquot sum) s(n): 51396940980
• 18345691980 is an abundant number, because the sum of its proper divisors (51396940980) is greater than itself. Its abundance is 33051249000

Bases of 18345691980

• Binary: 10001000101011111010000101101001100₂
• Hexadecimal: 0x4457D0B4C
• Base-36: 8FEJUJ0

Squares and roots of 18345691980

• 18345691980 squared (18345691980²) is 336564414225036320400
• 18345691980 cubed (18345691980³) is 6174507074801646738370990392000
• The square root of 18345691980 is 135446.2697160759
• The cube root of 18345691980 is 2637.4123318795

Scales and comparisons

• 18,345,691,980 seconds is equal to 583 years, 17 weeks, 3 days, 9 hours, 33 minutes.
• To count from 1 to 18,345,691,980 would take you about one thousand, one hundred sixty-six 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 18345691980 cubic inches would be around 219.8 feet tall.

Recreational maths with 18345691980

• 18345691980 backwards is 08919654381
• The number of decimal digits it has is: 11
• The sum of 18345691980's digits is 54
• More coming soon!