1998946719

Names of 1998946719

• Cardinal: 1998946719 can be written as One billion, nine hundred ninety-eight million, nine hundred forty-six thousand, seven hundred nineteen.

Scientific notation

• Scientific notation: 1.998946719 × 10⁹

Factors of 1998946719

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 101

Divisors of 1998946719

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 11 21 33 37 43 49 63 77 99 111 129 147 231 259 301 333 343 387 407 441 473 539 693 777 903 1029 1221 1369 1419 1591 1617 1813 2107 2331 2709 2849 3087 3311 3663 3773 4107 4257 4773 4851 5439 6321 8547 9583 9933 11137 11319 12321 12691 14319 14749 15059 16317 17501 18963 19943 23177 25641 28749 29799 33411 33957 38073 44247 45177 52503 58867 59829 67081 69531 77959 86247 100233 105413 114219 122507 132741 135531 139601 157509 162239 176601 179487 201243 208593 233877 316239 367521 412069 418803 469567 486717 529803 545713 603729 647537 701631 737891 857549 948717 1102563 1236207 1256409 1408701 1460151 1637139 1942611 2213673 2572647 2884483 3708621 4226103 4532759 4911417 5165237 5827833 6002843 6641019 7717941 8653449 13598277 15495711 18008529 20191381 25960347 31729313 40794831 46487133 54025587 60574143 95187939 181722429 222105191 285563817 666315573 1998946719
• Sum of all divisors σ(n): 3863059200
• Sum of proper divisors (its aliquot sum) s(n): 1864112481
• 1998946719 is a deficient number, because the sum of its proper divisors (1864112481) is less than itself. Its deficiency is 134834238

Bases of 1998946719

• Binary: 1110111001001011000000110011111₂
• Hexadecimal: 0x7725819F
• Base-36: X24D5R

Squares and roots of 1998946719

• 1998946719 squared (1998946719²) is 3995787985400864961
• 1998946719 cubed (1998946719³) is 7987367283236678913553012959
• The square root of 1998946719 is 44709.5819595757
• The cube root of 1998946719 is 1259.6998359063

Scales and comparisons

• 1,998,946,719 seconds is equal to 63 years, 29 weeks, 22 hours, 58 minutes, 39 seconds.
• To count from 1 to 1,998,946,719 would take you about one hundred twenty-seven 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 1998946719 cubic inches would be around 105 feet tall.

Recreational maths with 1998946719

• 1998946719 backwards is 9176498991
• 1998946719 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1998946719's digits is 63
• More coming soon!