1990955538

Names of 1990955538

• Cardinal: 1990955538 can be written as One billion, nine hundred ninety million, nine hundred fifty-five thousand, five hundred thirty-eight.

Scientific notation

• Scientific notation: 1.990955538 × 10⁹

Factors of 1990955538

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 630

Divisors of 1990955538

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 27 33 39 54 66 78 81 99 117 121 143 162 169 198 234 242 286 297 338 351 363 429 507 594 601 702 726 858 891 1014 1053 1089 1202 1287 1521 1573 1782 1803 1859 2106 2178 2574 3042 3146 3267 3606 3718 3861 4563 4719 5409 5577 6534 6611 7722 7813 9126 9438 9801 10818 11154 11583 13222 13689 14157 15626 16227 16731 19602 19833 20449 23166 23439 27378 28314 32454 33462 39666 40898 42471 46878 48681 50193 59499 61347 70317 72721 84942 85943 97362 100386 101569 118998 122694 127413 140634 145442 150579 171886 178497 184041 203138 210951 218163 254826 257829 301158 304707 356994 368082 421902 436326 515658 535491 552123 609414 632853 654489 773487 914121 945373 1070982 1104246 1117259 1265706 1308978 1546974 1656369 1828242 1890746 1963467 2234518 2320461 2742363 2836119 3312738 3351777 3926934 4640922 5484726 5672238 5890401 6703554 6961383 8227089 8508357 10055331 11780802 12289849 13922766 16454178 17016714 20110662 24579698 25525071 30165993 36869547 51050142 60331986 73739094 76575213 90497979 110608641 153150426 180995958 221217282 331825923 663651846 995477769 1990955538
• Sum of all divisors σ(n): 5318704314
• Sum of proper divisors (its aliquot sum) s(n): 3327748776
• 1990955538 is an abundant number, because the sum of its proper divisors (3327748776) is greater than itself. Its abundance is 1336793238

Bases of 1990955538

• Binary: 1110110101010111001001000010010₂
• Hexadecimal: 0x76AB9212
• Base-36: WXD34I

Squares and roots of 1990955538

• 1990955538 squared (1990955538²) is 3963903954292869444
• 1990955538 cubed (1990955538³) is 7891956529899487293442780872
• The square root of 1990955538 is 44620.1248093279
• The cube root of 1990955538 is 1258.0189617699

Scales and comparisons

• 1,990,955,538 seconds is equal to 63 years, 15 weeks, 6 days, 11 hours, 12 minutes, 18 seconds.
• To count from 1 to 1,990,955,538 would take you about one hundred twenty-six 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 1990955538 cubic inches would be around 104.8 feet tall.

Recreational maths with 1990955538

• 1990955538 backwards is 8355590991
• 1990955538 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1990955538's digits is 54
• More coming soon!