18321972088

Names of 18321972088

• Cardinal: 18321972088 can be written as Eighteen billion, three hundred twenty-one million, nine hundred seventy-two thousand and eighty-eight.

Scientific notation

• Scientific notation: 1.8321972088 × 10¹⁰

Factors of 18321972088

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 174

Divisors of 18321972088

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 17 28 34 41 56 68 82 107 119 136 164 214 238 287 328 428 476 574 697 749 856 952 1148 1394 1498 1681 1819 2296 2788 2996 3362 3638 4387 4879 5576 5992 6724 7276 8774 9758 11449 11767 12733 13448 14552 17548 19516 22898 23534 25466 28577 30709 35096 39032 45796 47068 50932 57154 61418 74579 80143 91592 94136 101864 114308 122836 149158 160286 179867 194633 200039 228616 245672 298316 320572 359734 389266 400078 469409 522053 596632 641144 719468 778532 800156 938818 1044106 1259069 1362431 1438936 1557064 1600312 1877636 2088212 2518138 2724862 3057739 3285863 3755272 4176424 5036276 5449724 6115478 6571726 7979953 10072552 10899448 12230956 13143452 15959906 19245769 21404173 24461912 26286904 31919812 38491538 42808346 55859671 63839624 76983076 85616692 111719342 134720383 153966152 171233384 223438684 269440766 327178073 446877368 538881532 654356146 1077763064 1308712292 2290246511 2617424584 4580493022 9160986044 18321972088
• Sum of all divisors σ(n): 43011455760
• Sum of proper divisors (its aliquot sum) s(n): 24689483672
• 18321972088 is an abundant number, because the sum of its proper divisors (24689483672) is greater than itself. Its abundance is 6367511584

Bases of 18321972088

• Binary: 10001000100000100110001101101111000₂
• Hexadecimal: 0x444131B78
• Base-36: 8F0FG54

Squares and roots of 18321972088

• 18321972088 squared (18321972088²) is 335694661193451079744
• 18321972088 cubed (18321972088³) is 6150588212477027451463030185472
• The square root of 18321972088 is 135358.6793966313
• The cube root of 18321972088 is 2636.2751690535

Scales and comparisons

• 18,321,972,088 seconds is equal to 582 years, 30 weeks, 1 day, 20 hours, 41 minutes, 28 seconds.
• To count from 1 to 18,321,972,088 would take you about one thousand, one hundred sixty-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 18321972088 cubic inches would be around 219.7 feet tall.

Recreational maths with 18321972088

• 18321972088 backwards is 88027912381
• The number of decimal digits it has is: 11
• The sum of 18321972088's digits is 49
• More coming soon!