7421397830

Names of 7421397830

• Cardinal: 7421397830 can be written as Seven billion, four hundred twenty-one million, three hundred ninety-seven thousand, eight hundred thirty.

Scientific notation

• Scientific notation: 7.42139783 × 10⁹

Factors of 7421397830

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 307

Divisors of 7421397830

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 7 10 11 14 22 29 31 35 55 58 62 70 71 77 110 142 145 151 154 155 203 217 290 302 310 319 341 355 385 406 434 497 638 682 710 755 770 781 899 994 1015 1057 1085 1510 1562 1595 1661 1705 1798 2030 2059 2114 2170 2201 2233 2387 2485 3190 3322 3410 3905 4118 4379 4402 4466 4495 4681 4774 4970 5285 5467 6293 7810 8305 8758 8990 9362 9889 10295 10570 10721 10934 11005 11165 11627 11935 12586 14413 15407 16610 19778 20590 21442 21895 22010 22330 22649 23254 23405 23870 24211 27335 28826 30653 30814 31465 32767 43790 45298 46810 48169 48422 49445 51491 53605 54670 58135 61306 62930 63829 65534 69223 72065 75047 77035 96338 98890 102982 107210 113245 116270 117931 121055 127658 135749 138446 144130 150094 153265 154070 158543 163835 169477 226490 235862 240845 242110 257455 271498 306530 310909 317086 319145 327670 332351 337183 338954 346115 360437 375235 446803 481690 514910 589655 621818 638290 664702 674366 678745 692230 702119 720874 750470 792715 825517 847385 893606 950243 1179310 1357490 1404238 1493239 1554545 1585430 1651034 1661755 1685915 1694770 1802185 1900486 2176363 2234015 2326457 2986478 3109090 3323510 3371830 3419999 3510595 3604370 3655861 4127585 4352726 4468030 4652914 4751215 4914833 6839998 7021190 7311722 7466195 8255170 9502430 9638179 9829666 10452673 10881815 11632285 14932390 17099995 18279305 19276358 20905346 21763630 23264570 23939993 24574165 25591027 34199990 36558610 47879986 48190895 49148330 51182054 52263365 67467253 96381790 104526730 106019969 119699965 127955135 134934506 212039938 239399930 255910270 337336265 530099845 674672530 742139783 1060199690 1484279566 3710698915 7421397830
• Sum of all divisors σ(n): 18154782720
• Sum of proper divisors (its aliquot sum) s(n): 10733384890
• 7421397830 is an abundant number, because the sum of its proper divisors (10733384890) is greater than itself. Its abundance is 3311987060

Bases of 7421397830

• Binary: 110111010010110011000101101000110₂
• Hexadecimal: 0x1BA598B46
• Base-36: 3EQIB7Q

Squares and roots of 7421397830

• 7421397830 squared (7421397830²) is 55077145751128708900
• 7421397830 cubed (7421397830³) is 408749409960020320281161687000
• The square root of 7421397830 is 86147.5352520315
• The cube root of 7421397830 is 1950.5716342961

Scales and comparisons

• 7,421,397,830 seconds is equal to 235 years, 50 weeks, 5 days, 19 hours, 23 minutes, 50 seconds.
• To count from 1 to 7,421,397,830 would take you about four hundred seventy-one 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 7421397830 cubic inches would be around 162.5 feet tall.

Recreational maths with 7421397830

• 7421397830 backwards is 0387931247
• The number of decimal digits it has is: 10
• The sum of 7421397830's digits is 44
• More coming soon!