9991199400

Names of 9991199400

• Cardinal: 9991199400 can be written as Nine billion, nine hundred ninety-one million, one hundred ninety-nine thousand, four hundred.

Scientific notation

• Scientific notation: 9.9911994 × 10⁹

Factors of 9991199400

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9680

Divisors of 9991199400

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 19 20 21 24 25 26 28 30 35 38 39 40 42 50 52 56 57 60 65 70 75 76 78 84 91 95 100 104 105 114 120 130 133 140 150 152 156 168 175 182 190 195 200 210 228 247 260 266 273 280 285 300 312 325 350 364 380 390 399 420 455 456 475 494 520 525 532 546 570 600 650 665 700 728 741 760 780 798 840 910 950 975 988 1050 1064 1092 1140 1235 1300 1330 1365 1400 1425 1482 1560 1596 1729 1820 1900 1950 1976 1995 2100 2184 2275 2280 2470 2600 2660 2730 2850 2964 3192 3325 3458 3640 3705 3800 3900 3990 4200 4550 4940 5187 5320 5460 5700 5928 6175 6650 6825 6916 7410 7800 7980 8645 9100 9631 9880 9975 10374 10920 11400 12350 13300 13650 13832 14820 15960 17290 18200 18525 19262 19950 20748 24700 25935 26600 27300 28893 29640 34580 37050 38524 39900 41496 43225 48155 49400 51870 54600 57786 67417 69160 74100 77048 79800 86450 96310 103740 115572 125203 129675 134834 144465 148200 172900 182989 192620 202251 207480 231144 240775 250406 259350 269668 288930 337085 345800 365978 375609 385240 404502 481550 500812 518700 539336 548967 577860 626015 674170 722325 731956 751218 809004 876421 914945 963100 1001624 1011255 1037400 1097934 1155720 1252030 1280923 1348340 1444650 1463912 1502436 1618008 1685425 1752842 1829890 1878045 1926200 2022510 2195868 2378857 2504060 2561846 2629263 2696680 2744835 2889300 3004872 3130075 3370850 3505684 3659780 3756090 3842769 4045020 4382105 4391736 4574725 4757714 5008120 5056275 5123692 5258526 5489670 5778600 6260150 6404615 6741700 7011368 7136571 7319560 7512180 7685538 8090040 8764210 9149450 9390225 9515428 10112550 10247384 10517052 10979340 11894285 12520300 12809230 13146315 13483400 13724175 14273142 15024360 15371076 16651999 17528420 18298900 18780450 19030856 19213845 20225100 21034104 21910525 21958680 23788570 25040600 25618460 26292630 27448350 28546284 30742152 32023075 33303998 35056840 35682855 36597800 37560900 38427690 40450200 43821050 47577140 49955997 51236920 52585260 54896700 57092568 59471425 64046150 65731575 66607996 71365710 75121800 76855380 83259995 87642100 95154280 96069225 99911994 105170520 109793400 118942850 128092300 131463150 133215992 142731420 153710760 166519990 175284200 178414275 192138450 199823988 237885700 249779985 256184600 262926300 285462840 333039980 356828550 384276900 399647976 416299975 475771400 499559970 525852600 666079960 713657100 768553800 832599950 999119940 1248899925 1427314200 1665199900 1998239880 2497799850 3330399800 4995599700 9991199400
• Sum of all divisors σ(n): 40130764800
• Sum of proper divisors (its aliquot sum) s(n): 30139565400
• 9991199400 is an abundant number, because the sum of its proper divisors (30139565400) is greater than itself. Its abundance is 20148366000

Bases of 9991199400

• Binary: 1001010011100001011001101010101000₂
• Hexadecimal: 0x253859AA8
• Base-36: 4L8I2SO

Squares and roots of 9991199400

• 9991199400 squared (9991199400²) is 99824065450560360000
• 9991199400 cubed (9991199400³) is 997362142835199398495784000000
• The square root of 9991199400 is 99955.9873144175
• The cube root of 9991199400 is 2153.8024939409

Scales and comparisons

• 9,991,199,400 seconds is equal to 317 years, 35 weeks, 5 days, 21 hours, 10 minutes.
• To count from 1 to 9,991,199,400 would take you about six hundred thirty-five 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 9991199400 cubic inches would be around 179.5 feet tall.

Recreational maths with 9991199400

• 9991199400 backwards is 0049911999
• The number of decimal digits it has is: 10
• The sum of 9991199400's digits is 51
• More coming soon!