1999808140

Names of 1999808140

• Cardinal: 1999808140 can be written as One billion, nine hundred ninety-nine million, eight hundred eight thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.99980814 × 10⁹

Factors of 1999808140

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 152

Divisors of 1999808140

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 10 11 19 20 22 23 31 38 44 46 55 61 62 76 92 95 110 115 121 122 124 155 190 209 220 230 242 244 253 305 310 341 380 418 437 460 484 506 589 605 610 620 671 682 713 836 874 1012 1045 1159 1178 1210 1220 1265 1342 1364 1403 1426 1705 1748 1891 2090 2185 2299 2318 2356 2420 2530 2684 2783 2806 2852 2945 3355 3410 3565 3751 3782 4180 4370 4598 4636 4807 5060 5566 5612 5795 5890 6479 6710 6820 7015 7130 7381 7502 7564 7843 8740 9196 9455 9614 11132 11495 11590 11780 12749 12958 13420 13547 13915 14030 14260 14762 15004 15433 15686 18755 18910 19228 20801 22990 23180 24035 25498 25916 26657 27094 27830 28060 29524 30866 31372 32395 35929 36905 37510 37820 39215 41602 43493 45980 48070 50996 52877 53314 54188 55660 61732 63745 64790 67735 71269 71858 73810 75020 77165 78430 83204 86273 86986 96140 104005 105754 106628 127490 129580 133285 135470 140239 142538 143716 147620 149017 154330 156860 169763 172546 173972 179645 208010 211508 217465 228811 254980 264385 266570 270940 280478 285076 293227 298034 308660 339526 345092 356345 359290 395219 416020 431365 434930 457622 478423 528770 533140 560956 586454 596068 679052 701195 712690 718580 745085 790438 826367 848815 862730 869860 915244 956846 1057540 1144055 1172908 1402390 1425380 1466135 1490170 1580876 1639187 1652734 1697630 1725460 1913692 1976095 2288110 2392115 2804780 2932270 2980340 3225497 3278374 3305468 3395260 3952190 4131835 4347409 4576220 4784230 5262653 5864540 6450994 6556748 7904380 8195935 8263670 8694818 9090037 9568460 10525306 12901988 16127485 16391870 16527340 17389636 18180074 21050612 21737045 26313265 32254970 32783740 36360148 43474090 45450185 52626530 64509940 86948180 90900370 99990407 105253060 181800740 199980814 399961628 499952035 999904070 1999808140
• Sum of all divisors σ(n): 5319659520
• Sum of proper divisors (its aliquot sum) s(n): 3319851380
• 1999808140 is an abundant number, because the sum of its proper divisors (3319851380) is greater than itself. Its abundance is 1320043240

Bases of 1999808140

• Binary: 1110111001100101010011010001100₂
• Hexadecimal: 0x7732A68C
• Base-36: X2MTU4

Squares and roots of 1999808140

• 1999808140 squared (1999808140²) is 3999232596810259600
• 1999808140 cubed (1999808140³) is 7997697900854495183593144000
• The square root of 1999808140 is 44719.2144385387
• The cube root of 1999808140 is 1259.8807605311

Scales and comparisons

• 1,999,808,140 seconds is equal to 63 years, 30 weeks, 3 days, 22 hours, 15 minutes, 40 seconds.
• To count from 1 to 1,999,808,140 would take you about one hundred twenty-seven 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 1999808140 cubic inches would be around 105 feet tall.

Recreational maths with 1999808140

• 1999808140 backwards is 0418089991
• The number of decimal digits it has is: 10
• The sum of 1999808140's digits is 49
• More coming soon!