18011421225

Names of 18011421225

• Cardinal: 18011421225 can be written as Eighteen billion, eleven million, four hundred twenty-one thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 1.8011421225 × 10¹⁰

Factors of 18011421225

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 98

Divisors of 18011421225

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 5 7 9 15 21 25 27 35 45 49 63 75 81 83 105 135 147 175 189 225 243 245 249 315 405 415 441 525 567 581 675 729 735 747 945 1215 1225 1245 1323 1575 1701 1743 2025 2075 2187 2205 2241 2835 2905 3645 3675 3735 3969 4067 4725 5103 5229 6075 6225 6561 6615 6723 8505 8715 10935 11025 11205 11907 12201 14175 14525 15309 15687 18225 18675 19683 19845 20169 20335 25515 26145 32805 33075 33615 35721 36603 42525 43575 45927 47061 54675 56025 59049 59535 60507 61005 76545 78435 98415 99225 100845 101675 107163 109809 127575 130725 137781 141183 164025 168075 177147 178605 181521 183015 229635 235305 295245 297675 302535 305025 321489 329427 382725 392175 413343 423549 492075 504225 535815 544563 549045 688905 705915 885735 893025 907605 915075 964467 988281 1148175 1176525 1240029 1270647 1476225 1512675 1607445 1633689 1647135 2066715 2117745 2679075 2722815 2745225 2893401 2964843 3444525 3529575 3811941 4428675 4538025 4822335 4901067 4941405 6200145 6353235 8037225 8168445 8235675 8680203 8894529 10333575 10588725 11435823 13614075 14467005 14703201 14824215 19059705 24111675 24505335 24707025 26683587 31000725 31766175 34307469 40842225 43401015 44472645 57179115 72335025 73516005 74121075 80050761 95298525 102922407 122526675 133417935 171537345 217005075 222363225 240152283 285895575 367580025 400253805 514612035 667089675 720456849 857686725 1200761415 2001269025 2573060175 3602284245 6003807075 18011421225
• Sum of all divisors σ(n): 39440288160
• Sum of proper divisors (its aliquot sum) s(n): 21428866935
• 18011421225 is an abundant number, because the sum of its proper divisors (21428866935) is greater than itself. Its abundance is 3417445710

Bases of 18011421225

• Binary: 10000110001100100000111101000101001₂
• Hexadecimal: 0x431907A29
• Base-36: 89VJ9K9

Squares and roots of 18011421225

• 18011421225 squared (18011421225²) is 324411294544380500625
• 18011421225 cubed (18011421225³) is 5843108476186381653433250765625
• The square root of 18011421225 is 134206.6362926959
• The cube root of 18011421225 is 2621.2955747385

Scales and comparisons

• 18,011,421,225 seconds is equal to 572 years, 36 weeks, 5 days, 12 hours, 33 minutes, 45 seconds.
• To count from 1 to 18,011,421,225 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 18011421225 cubic inches would be around 218.4 feet tall.

Recreational maths with 18011421225

• 18011421225 backwards is 52212411081
• 18011421225 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18011421225's digits is 27
• More coming soon!