40302990

Names of 40302990

• Cardinal: 40302990 can be written as Forty million, three hundred two thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 4.030299 × 10⁷

Factors of 40302990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 86

Divisors of 40302990

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 19 21 26 30 35 37 38 39 42 45 49 57 63 65 70 74 78 90 91 95 98 105 111 114 117 126 130 133 147 171 182 185 190 195 210 222 234 245 247 259 266 273 285 294 315 333 342 370 390 399 441 455 481 490 494 518 546 555 570 585 630 637 665 666 703 735 741 777 798 819 855 882 910 931 962 1110 1170 1197 1235 1274 1295 1330 1365 1406 1443 1470 1482 1554 1638 1665 1710 1729 1813 1862 1911 1995 2109 2205 2223 2331 2394 2405 2470 2590 2730 2793 2886 3185 3330 3367 3458 3515 3626 3705 3822 3885 3990 4095 4218 4329 4410 4446 4655 4662 4810 4921 5187 5439 5586 5733 5985 6327 6370 6734 7030 7215 7410 7770 8190 8379 8645 8658 9065 9139 9310 9555 9842 10101 10374 10545 10878 11115 11466 11655 11970 12103 12654 13965 14430 14763 15561 16317 16758 16835 17290 18130 18278 19110 20202 21090 21645 22230 23310 23569 24206 24605 25935 27195 27417 27930 28665 29526 30303 31122 31635 32634 33670 34447 36309 41895 43290 44289 45695 47138 49210 50505 51870 54390 54834 57330 60515 60606 63270 63973 68894 70707 72618 73815 77805 81585 82251 83790 88578 91390 101010 103341 108927 117845 121030 127946 137085 141414 147630 151515 155610 163170 164502 172235 181545 191919 206682 212121 217854 221445 235690 274170 303030 310023 319865 344470 353535 363090 383838 411255 424242 442890 447811 516705 544635 575757 620046 639730 707070 822510 895622 959595 1033410 1060605 1089270 1151514 1343433 1550115 1919190 2121210 2239055 2686866 2878785 3100230 4030299 4478110 5757570 6717165 8060598 13434330 20151495 40302990
• Sum of all divisors σ(n): 141916320
• Sum of proper divisors (its aliquot sum) s(n): 101613330
• 40302990 is an abundant number, because the sum of its proper divisors (101613330) is greater than itself. Its abundance is 61310340

Bases of 40302990

• Binary: 10011001101111100110001110₂
• Hexadecimal: 0x266F98E
• Base-36: NZTZI

Squares and roots of 40302990

• 40302990 squared (40302990²) is 1624331002940100
• 40302990 cubed (40302990³) is 65465396168184820899000
• The square root of 40302990 is 6348.4635936579
• The cube root of 40302990 is 342.8565275287

Scales and comparisons

• 40,302,990 seconds is equal to 1 year, 14 weeks, 4 days, 11 hours, 16 minutes, 30 seconds.
• To count from 1 to 40,302,990 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 40302990 cubic inches would be around 28.6 feet tall.

Recreational maths with 40302990

• 40302990 backwards is 09920304
• The number of decimal digits it has is: 8
• The sum of 40302990's digits is 27
• More coming soon!