1988973140

Names of 1988973140

• Cardinal: 1988973140 can be written as One billion, nine hundred eighty-eight million, nine hundred seventy-three thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.98897314 × 10⁹

Factors of 1988973140

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 192

Divisors of 1988973140

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 10 11 14 17 20 22 28 34 35 41 44 55 68 70 77 82 85 109 110 119 140 154 164 170 187 205 218 220 238 287 289 308 340 374 385 410 436 451 476 545 574 578 595 697 748 763 770 820 902 935 1090 1148 1156 1190 1199 1309 1394 1435 1445 1526 1540 1804 1853 1870 2023 2180 2255 2380 2398 2618 2788 2870 2890 3052 3157 3179 3485 3706 3740 3815 4046 4469 4510 4796 4879 5236 5740 5780 5995 6314 6358 6545 6970 7412 7630 7667 8092 8393 8938 9020 9265 9758 10115 11849 11990 12628 12716 12971 13090 13940 15260 15334 15785 15895 16786 17876 18530 19516 20230 20383 22253 22345 23698 23980 24395 25942 26180 30668 31283 31501 31570 31790 33572 37060 38335 40460 40766 41965 44506 44690 47396 48790 49159 51884 53669 59245 62566 63002 63140 63580 64855 75973 76670 81532 82943 83930 89012 89380 97580 98318 101915 107338 111265 118490 125132 126004 129710 130339 142681 151946 153340 156415 157505 165886 167860 196636 203830 214676 220507 222530 236980 245795 259420 260678 268345 285362 303892 312830 315010 331772 344113 346511 379865 407660 414715 441014 445060 491590 521356 531811 536690 570724 625660 630020 651695 688226 693022 713405 759730 829430 835703 882028 912373 983180 1063622 1073380 1102535 1291541 1303390 1376452 1386044 1426810 1519460 1658860 1671406 1720565 1732555 1824746 2127244 2205070 2425577 2583082 2606780 2659055 2853620 3342812 3441130 3465110 3649492 4178515 4410140 4561865 4851154 5166164 5318110 5849921 6457705 6882260 6930220 8357030 9040787 9123730 9702308 10636220 11699842 12127885 12915410 14206951 16714060 18081574 18247460 23399684 24255770 25830820 28413902 29249605 36163148 45203935 48511540 56827804 58499210 71034755 90407870 99448657 116998420 142069510 180815740 198897314 284139020 397794628 497243285 994486570 1988973140
• Sum of all divisors σ(n): 5718746880
• Sum of proper divisors (its aliquot sum) s(n): 3729773740
• 1988973140 is an abundant number, because the sum of its proper divisors (3729773740) is greater than itself. Its abundance is 1740800600

Bases of 1988973140

• Binary: 1110110100011010101001001010100₂
• Hexadecimal: 0x768D5254
• Base-36: WW6LHW

Squares and roots of 1988973140

• 1988973140 squared (1988973140²) is 3956014151641459600
• 1988973140 cubed (1988973140³) is 7868405889074750054795144000
• The square root of 1988973140 is 44597.9051077513
• The cube root of 1988973140 is 1257.6012858667

Scales and comparisons

• 1,988,973,140 seconds is equal to 63 years, 12 weeks, 4 days, 12 hours, 32 minutes, 20 seconds.
• To count from 1 to 1,988,973,140 would take you about one hundred twenty-six 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 1988973140 cubic inches would be around 104.8 feet tall.

Recreational maths with 1988973140

• 1988973140 backwards is 0413798891
• The number of decimal digits it has is: 10
• The sum of 1988973140's digits is 50
• More coming soon!