18228980

Names of 18228980

• Cardinal: 18228980 can be written as Eighteen million, two hundred twenty-eight thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.822898 × 10⁷

Factors of 18228980

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 133

Divisors of 18228980

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 11 14 19 20 22 28 35 38 44 49 55 70 76 77 89 95 98 110 133 140 154 178 190 196 209 220 245 266 308 356 380 385 418 445 490 532 539 623 665 770 836 890 931 979 980 1045 1078 1246 1330 1463 1540 1691 1780 1862 1958 2090 2156 2492 2660 2695 2926 3115 3382 3724 3916 4180 4361 4655 4895 5390 5852 6230 6764 6853 7315 8455 8722 9310 9790 10241 10780 11837 12460 13706 14630 16910 17444 18601 18620 19580 20482 21805 23674 27412 29260 33820 34265 37202 40964 43610 47348 47971 51205 59185 68530 74404 82859 87220 93005 95942 102410 118370 130207 137060 165718 186010 191884 204820 236740 239855 260414 331436 372020 414295 479710 520828 651035 828590 911449 959420 1302070 1657180 1822898 2604140 3645796 4557245 9114490 18228980
• Sum of all divisors σ(n): 51710400
• Sum of proper divisors (its aliquot sum) s(n): 33481420
• 18228980 is an abundant number, because the sum of its proper divisors (33481420) is greater than itself. Its abundance is 15252440

Bases of 18228980

• Binary: 1000101100010011011110100₂
• Hexadecimal: 0x11626F4
• Base-36: AUPKK

Squares and roots of 18228980

• 18228980 squared (18228980²) is 332295711840400
• 18228980 cubed (18228980³) is 6057411885224414792000
• The square root of 18228980 is 4269.5409589323
• The cube root of 18228980 is 263.1807515725

Scales and comparisons

• 18,228,980 seconds is equal to 30 weeks, 23 hours, 36 minutes, 20 seconds.
• To count from 1 to 18,228,980 would take you about forty-five weeks!

  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 18228980 cubic inches would be around 21.9 feet tall.

Recreational maths with 18228980

• 18228980 backwards is 08982281
• 18228980 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18228980's digits is 38
• More coming soon!