8139942380

Names of 8139942380

• Cardinal: 8139942380 can be written as Eight billion, one hundred thirty-nine million, nine hundred forty-two thousand, three hundred eighty.

Scientific notation

• Scientific notation: 8.13994238 × 10⁹

Factors of 8139942380

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 578

Divisors of 8139942380

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 10 17 19 20 34 38 41 68 73 76 82 85 95 146 164 170 190 205 292 323 340 365 380 410 421 646 697 730 779 820 842 1241 1292 1387 1394 1460 1558 1615 1684 2105 2482 2774 2788 2993 3116 3230 3485 3895 4210 4964 5548 5986 6205 6460 6935 6970 7157 7790 7999 8420 11972 12410 13243 13870 13940 14314 14965 15580 15998 17261 23579 24820 26486 27740 28628 29930 30733 31996 34522 35785 39995 47158 50881 52972 56867 59860 61466 66215 69044 71570 79990 86305 94316 101762 113734 117895 122932 132430 135983 143140 153665 159980 172610 203524 227468 235790 254405 264860 271966 284335 293437 307330 327959 345220 471580 508810 522461 543932 568670 583927 586874 614660 655918 679915 966739 1017620 1044922 1137340 1167854 1173748 1260053 1311836 1359830 1467185 1639795 1933478 2089844 2335708 2520106 2612305 2719660 2919635 2934370 3279590 3866956 4833695 5040212 5224610 5575303 5839270 5868740 6300265 6559180 9667390 9926759 10449220 11150606 11678540 12600530 19334780 19853518 21420901 22301212 23941007 25201060 27876515 39707036 42841802 47882014 49633795 55753030 85683604 95764028 99267590 107104505 111506060 119705035 198535180 214209010 239410070 406997119 428418020 478820140 813994238 1627988476 2034985595 4069971190 8139942380
• Sum of all divisors σ(n): 19831029120
• Sum of proper divisors (its aliquot sum) s(n): 11691086740
• 8139942380 is an abundant number, because the sum of its proper divisors (11691086740) is greater than itself. Its abundance is 3551144360

Bases of 8139942380

• Binary: 111100101001011011010100111101100₂
• Hexadecimal: 0x1E52DA9EC
• Base-36: 3QMB7QK

Squares and roots of 8139942380

• 8139942380 squared (8139942380²) is 66258661949720064400
• 8139942380 cubed (8139942380³) is 539341690446619781345889272000
• The square root of 8139942380 is 90221.6292249259
• The cube root of 8139942380 is 2011.5945186779

Scales and comparisons

• 8,139,942,380 seconds is equal to 258 years, 42 weeks, 6 days, 7 hours, 6 minutes, 20 seconds.
• To count from 1 to 8,139,942,380 would take you about five hundred seventeen 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 8139942380 cubic inches would be around 167.6 feet tall.

Recreational maths with 8139942380

• 8139942380 backwards is 0832499318
• The number of decimal digits it has is: 10
• The sum of 8139942380's digits is 47
• More coming soon!