4991997920

Names of 4991997920

• Cardinal: 4991997920 can be written as Four billion, nine hundred ninety-one million, nine hundred ninety-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 4.99199792 × 10⁹

Factors of 4991997920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6549

Divisors of 4991997920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 53 56 65 70 80 91 104 106 112 130 140 160 182 208 212 224 260 265 280 364 371 416 424 455 520 530 560 689 728 742 848 910 1040 1060 1120 1378 1456 1484 1696 1820 1855 2080 2120 2756 2912 2968 3445 3640 3710 4240 4823 5512 5936 6469 6890 7280 7420 8480 9646 11024 11872 12938 13780 14560 14840 19292 22048 24115 25876 27560 29680 32345 38584 45283 48230 51752 55120 59360 64690 77168 84097 90566 96460 103504 110240 129380 154336 168194 181132 192920 207008 226415 258760 336388 342857 362264 385840 420485 452830 517520 588679 672776 685714 724528 771680 840970 905660 1035040 1177358 1345552 1371428 1449056 1681940 1714285 1811320 2354716 2399999 2691104 2742856 2943395 3363880 3428570 3622640 4457141 4709432 4799998 5485712 5886790 6727760 6857140 7245280 8914282 9418864 9599996 10971424 11773580 11999995 13455520 13714280 17828564 18837728 19199992 22285705 23547160 23999990 27428560 31199987 35657128 38399984 44571410 47094320 47999980 54857120 62399974 71314256 76799968 89142820 94188640 95999960 124799948 142628512 155999935 178285640 191999920 249599896 311999870 356571280 383999840 499199792 623999740 713142560 998399584 1247999480 2495998960 4991997920
• Sum of all divisors σ(n): 14791351680
• Sum of proper divisors (its aliquot sum) s(n): 9799353760
• 4991997920 is an abundant number, because the sum of its proper divisors (9799353760) is greater than itself. Its abundance is 4807355840

Bases of 4991997920

• Binary: 100101001100010111101011111100000₂
• Hexadecimal: 0x1298BD7E0
• Base-36: 2AK3U8W

Squares and roots of 4991997920

• 4991997920 squared (4991997920²) is 24920043233284326400
• 4991997920 cubed (4991997920³) is 124400803986865432157401088000
• The square root of 4991997920 is 70654.0722110199
• The cube root of 4991997920 is 1709.0632353091

Scales and comparisons

• 4,991,997,920 seconds is equal to 158 years, 37 weeks, 6 days, 18 hours, 5 minutes, 20 seconds.
• To count from 1 to 4,991,997,920 would take you about three 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 4991997920 cubic inches would be around 142.4 feet tall.

Recreational maths with 4991997920

• 4991997920 backwards is 0297991994
• The number of decimal digits it has is: 10
• The sum of 4991997920's digits is 59
• More coming soon!