990649764

Names of 990649764

• Cardinal: 990649764 can be written as Nine hundred ninety million, six hundred forty-nine thousand, seven hundred sixty-four.

Scientific notation

• Scientific notation: 9.90649764 × 10⁸

Factors of 990649764

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 330

Divisors of 990649764

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 31 36 39 52 54 62 78 81 93 108 117 124 156 162 186 234 243 279 281 324 351 372 403 468 486 558 562 702 729 806 837 843 972 1053 1116 1124 1209 1404 1458 1612 1674 1686 2106 2187 2418 2511 2529 2916 3159 3348 3372 3627 3653 4212 4374 4836 5022 5058 6318 7254 7306 7533 7587 8711 8748 9477 10044 10116 10881 10959 12636 14508 14612 15066 15174 17422 18954 21762 21918 22599 22761 26133 28431 30132 30348 32643 32877 34844 37908 43524 43836 45198 45522 52266 56862 65286 65754 67797 68283 78399 90396 91044 97929 98631 104532 113243 113724 130572 131508 135594 136566 156798 195858 197262 204849 226486 235197 271188 273132 293787 295893 313596 339729 391716 394524 409698 452972 470394 587574 591786 614547 679458 705591 819396 881361 887679 940788 1019187 1175148 1183572 1229094 1358916 1411182 1762722 1775358 2038374 2116773 2458188 2663037 2822364 3057561 3525444 3550716 4076748 4233546 5326074 6115122 6350319 7989111 8467092 9172683 10652148 12230244 12700638 15978222 18345366 19050957 25401276 27518049 31956444 36690732 38101914 55036098 76203828 82554147 110072196 165108294 247662441 330216588 495324882 990649764
• Sum of all divisors σ(n): 2900674560
• Sum of proper divisors (its aliquot sum) s(n): 1910024796
• 990649764 is an abundant number, because the sum of its proper divisors (1910024796) is greater than itself. Its abundance is 919375032

Bases of 990649764

• Binary: 111011000011000001110110100100₂
• Hexadecimal: 0x3B0C1DA4
• Base-36: GDT290

Squares and roots of 990649764

• 990649764 squared (990649764²) is 981386954913255696
• 990649764 cubed (990649764³) is 972210755277495395714055744
• The square root of 990649764 is 31474.5891792093
• The cube root of 990649764 is 996.8734897877

Scales and comparisons

• 990,649,764 seconds is equal to 31 years, 25 weeks, 6 days, 20 hours, 29 minutes, 24 seconds.
• To count from 1 to 990,649,764 would take you about forty-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 990649764 cubic inches would be around 83.1 feet tall.

Recreational maths with 990649764

• 990649764 backwards is 467946099
• 990649764 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 990649764's digits is 54
• More coming soon!