18981248

Names of 18981248

• Cardinal: 18981248 can be written as Eighteen million, nine hundred eighty-one thousand, two hundred forty-eight.

Scientific notation

• Scientific notation: 1.8981248 × 10⁷

Factors of 18981248

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 104

Divisors of 18981248

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 11 13 16 17 22 26 32 34 44 52 61 64 68 88 104 122 128 136 143 176 187 208 221 244 272 286 352 374 416 442 488 544 572 671 704 748 793 832 884 976 1037 1088 1144 1342 1408 1496 1586 1664 1768 1952 2074 2176 2288 2431 2684 2992 3172 3536 3904 4148 4576 4862 5368 5984 6344 7072 7808 8296 8723 9152 9724 10736 11407 11968 12688 13481 14144 16592 17446 18304 19448 21472 22814 23936 25376 26962 28288 33184 34892 38896 42944 45628 50752 53924 66368 69784 77792 85888 91256 101504 107848 132736 139568 148291 155584 182512 215696 279136 296582 311168 365024 431392 558272 593164 730048 862784 1116544 1186328 1460096 1725568 2372656 4745312 9490624 18981248
• Sum of all divisors σ(n): 47809440
• Sum of proper divisors (its aliquot sum) s(n): 28828192
• 18981248 is an abundant number, because the sum of its proper divisors (28828192) is greater than itself. Its abundance is 9846944

Bases of 18981248

• Binary: 1001000011010000110000000₂
• Hexadecimal: 0x121A180
• Base-36: BAU0W

Squares and roots of 18981248

• 18981248 squared (18981248²) is 360287775637504
• 18981248 cubed (18981248³) is 6838711620743821524992
• The square root of 18981248 is 4356.7474106265
• The cube root of 18981248 is 266.7523502435

Scales and comparisons

• 18,981,248 seconds is equal to 31 weeks, 2 days, 16 hours, 34 minutes, 8 seconds.
• To count from 1 to 18,981,248 would take you about forty-seven 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 18981248 cubic inches would be around 22.2 feet tall.

Recreational maths with 18981248

• 18981248 backwards is 84218981
• The number of decimal digits it has is: 8
• The sum of 18981248's digits is 41
• More coming soon!