1938109140

Names of 1938109140

• Cardinal: 1938109140 can be written as One billion, nine hundred thirty-eight million, one hundred nine thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.93810914 × 10⁹

Factors of 1938109140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1167

Divisors of 1938109140

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 17 18 20 22 27 30 33 34 36 44 45 51 54 55 60 66 68 85 90 99 102 108 110 132 135 153 165 170 180 187 198 204 220 255 270 289 297 306 330 340 374 396 459 495 510 540 561 578 594 612 660 748 765 867 918 935 990 1020 1122 1129 1156 1188 1445 1485 1530 1683 1734 1836 1870 1980 2244 2258 2295 2601 2805 2890 2970 3060 3179 3366 3387 3468 3740 4335 4516 4590 5049 5202 5610 5645 5780 5940 6358 6732 6774 7803 8415 8670 9180 9537 10098 10161 10404 11220 11290 12419 12716 13005 13548 15606 15895 16830 16935 17340 19074 19193 20196 20322 22580 24838 25245 26010 28611 30483 31212 31790 33660 33870 37257 38148 38386 39015 40644 47685 49676 50490 50805 52020 57222 57579 60966 62095 63580 67740 74514 76772 78030 85833 95370 95965 100980 101610 111771 114444 115158 121932 124190 143055 149028 152415 156060 171666 172737 186285 190740 191930 203220 211123 223542 230316 248380 286110 287895 304830 326281 335313 343332 345474 372570 383860 422246 429165 447084 518211 558855 572220 575790 609660 633369 652562 670626 690948 745140 844492 858330 863685 978843 1036422 1055615 1117710 1151580 1266738 1305124 1341252 1631405 1676565 1716660 1727370 1900107 1957686 2072844 2111230 2235420 2533476 2591055 2936529 3166845 3262810 3353130 3454740 3589091 3800214 3915372 4222460 4894215 5182110 5700321 5873058 6333690 6525620 6706260 7178182 7600428 8809587 9500535 9788430 10364220 10767273 11400642 11746116 12667380 14356364 14682645 17619174 17945455 19001070 19576860 21534546 22801284 28501605 29365290 32301819 35238348 35890910 38002140 43069092 44047935 53836365 57003210 58730580 64603638 71781820 88095870 96905457 107672730 114006420 129207276 161509095 176191740 193810914 215345460 323018190 387621828 484527285 646036380 969054570 1938109140
• Sum of all divisors σ(n): 6993705600
• Sum of proper divisors (its aliquot sum) s(n): 5055596460
• 1938109140 is an abundant number, because the sum of its proper divisors (5055596460) is greater than itself. Its abundance is 3117487320

Bases of 1938109140

• Binary: 1110011100001010011001011010100₂
• Hexadecimal: 0x738532D4
• Base-36: W1WEL0

Squares and roots of 1938109140

• 1938109140 squared (1938109140²) is 3756267038551539600
• 1938109140 cubed (1938109140³) is 7280055479697471259831944000
• The square root of 1938109140 is 44023.9609758141
• The cube root of 1938109140 is 1246.7883719565

Scales and comparisons

• 1,938,109,140 seconds is equal to 61 years, 32 weeks, 3 days, 19 hours, 39 minutes.
• To count from 1 to 1,938,109,140 would take you about one hundred twenty-three 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 1938109140 cubic inches would be around 103.9 feet tall.

Recreational maths with 1938109140

• 1938109140 backwards is 0419018391
• 1938109140 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1938109140's digits is 36
• More coming soon!