19908874440

Names of 19908874440

• Cardinal: 19908874440 can be written as Nineteen billion, nine hundred eight million, eight hundred seventy-four thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.990887444 × 10¹⁰

Factors of 19908874440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 746

Divisors of 19908874440

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 20 21 24 26 27 28 30 35 36 39 40 42 43 45 49 52 54 56 60 63 65 70 72 78 84 86 90 91 98 104 105 108 117 120 126 129 130 135 140 147 156 168 172 180 182 189 195 196 210 215 216 234 245 252 258 260 270 273 280 294 301 312 315 344 351 360 364 378 387 390 392 420 430 441 455 468 490 504 516 520 540 546 559 585 588 602 630 637 645 673 702 728 735 756 774 780 819 840 860 882 903 910 936 945 980 1032 1080 1092 1118 1161 1170 1176 1204 1260 1274 1290 1323 1346 1365 1404 1470 1505 1512 1548 1560 1638 1677 1720 1755 1764 1806 1820 1890 1911 1935 1960 2019 2107 2184 2205 2236 2322 2340 2408 2457 2520 2548 2580 2646 2692 2709 2730 2795 2808 2940 3010 3096 3185 3276 3354 3365 3510 3528 3612 3640 3780 3822 3870 3913 4038 4095 4214 4410 4472 4515 4644 4680 4711 4914 5031 5096 5160 5292 5384 5418 5460 5590 5733 5805 5880 6020 6057 6321 6370 6552 6615 6708 6730 7020 7224 7560 7644 7740 7826 8076 8127 8190 8385 8428 8749 8820 9030 9288 9422 9555 9828 10062 10095 10535 10584 10836 10920 11180 11466 11610 11739 12040 12114 12285 12642 12740 13230 13416 13460 13545 14040 14133 15093 15288 15480 15652 16152 16254 16380 16770 16856 17199 17498 17640 18060 18171 18844 18963 19110 19565 19656 20124 20190 21070 21672 22360 22932 23220 23478 23555 24228 24570 25155 25284 25480 26247 26460 26920 27090 27391 28266 28665 28939 30186 30285 31304 31605 32508 32760 32977 33540 34398 34996 35217 36120 36342 37688 37926 38220 39130 40248 40380 40635 42140 42399 43745 45864 46440 46956 47110 48456 49140 50310 50568 52494 52920 54180 54782 56532 56889 57330 57878 58695 60372 60570 61243 63210 65016 65954 67080 68796 69992 70434 70665 72684 75465 75852 76440 78260 78741 80760 81270 82173 84280 84798 85995 86817 87490 90855 93912 94220 94815 98280 98931 100620 104988 105651 108360 109564 113064 113778 114660 115756 117390 120744 121140 122486 126420 127197 131235 131908 136955 137592 140868 141330 144695 145368 150930 151704 156520 157482 162540 164346 164885 169596 171990 173634 174980 176085 181710 183729 188440 189630 197862 201240 202573 209976 211302 211995 219128 227556 229320 231512 234780 236223 242280 244972 246519 252840 254394 260451 262470 263816 273910 281736 282660 284445 289390 296793 301860 306215 314964 325080 328692 329770 339192 343980 347268 349960 352170 363420 367458 376207 379260 393705 395724 405146 410865 422604 423990 428701 434085 455112 469560 472446 489944 493038 494655 508788 520902 524940 528255 547820 551187 565320 568890 578780 593586 603720 607719 612430 629928 635985 657384 659540 687960 694536 704340 726840 734916 739557 752414 758520 781353 787410 791448 810292 821730 845208 847980 857402 868170 890379 918645 944892 986076 989310 1012865 1017576 1041804 1049880 1056510 1095640 1102374 1128621 1137780 1157560 1181115 1187172 1215438 1224860 1232595 1271970 1286103 1302255 1319080 1408680 1418011 1469832 1479114 1483965 1504828 1562706 1574820 1620584 1643460 1653561 1695960 1714804 1736340 1780758 1823157 1837290 1881035 1889784 1972152 1978620 2025730 2083608 2113020 2143505 2204748 2257242 2275560 2362230 2374344 2430876 2449720 2465190 2543940 2572206 2604510 2633449 2755935 2836022 2958228 2967930 3009656 3038595 3125412 3149640 3286920 3307122 3385863 3429608 3472680 3561516 3646314 3674580 3697785 3762070 3858309 3906765 3957240 4051460 4226040 4254033 4287010 4409496 4451895 4514484 4724460 4861752 4930380 5087880 5144412 5209020 5266898 5469471 5511870 5643105 5672044 5916456 5935860 6077190 6250824 6430515 6614244 6771726 7090055 7123032 7292628 7349160 7395570 7524140 7716618 7813530 7900347 8102920 8267805 8508066 8574020 8903790 9028968 9115785 9448920 9860760 10157589 10288824 10418040 10533796 10938942 11023740 11286210 11344088 11574927 11871720 12154380 12762099 12861030 13167245 13228488 13543452 14180110 14585256 14791140 15048280 15433236 15627060 15800694 16535610 16929315 17016132 17148040 17807580 18231570 18434143 19291545 20315178 21067592 21270165 21877884 22047480 22572420 23149854 23701041 24308760 25524198 25722060 26334490 27086904 27347355 28360220 29582280 30866472 31254120 31601388 33071220 33858630 34032264 35615160 36463140 36868286 38286297 38583090 39501735 40630356 42540330 43755768 45144840 46299708 47402082 50787945 51048396 51444120 52668980 54694710 55302429 56720440 57874635 63202776 63810495 66142440 67717260 71103123 72926280 73736572 76572594 77166180 79003470 81260712 85080660 92170715 92599416 94804164 101575890 102096792 105337960 109389420 110604858 115749270 118505205 127620990 135434520 142206246 147473144 153145188 154332360 158006940 165907287 170161320 184341430 189608328 191431485 203151780 218778840 221209716 231498540 237010410 255241980 276512145 284412492 306290376 316013880 331814574 355515615 368682860 382862970 406303560 442419432 462997080 474020820 497721861 510483960 553024290 568824984 663629148 711031230 737365720 765725940 829536435 948041640 995443722 1106048580 1327258296 1422062460 1531451880 1659072870 1990887444 2212097160 2488609305 2844124920 3318145740 3981774888 4977218610 6636291480 9954437220 19908874440
• Sum of all divisors σ(n): 85195756800
• Sum of proper divisors (its aliquot sum) s(n): 65286882360
• 19908874440 is an abundant number, because the sum of its proper divisors (65286882360) is greater than itself. Its abundance is 45378007920

Bases of 19908874440

• Binary: 10010100010101010010101000011001000₂
• Hexadecimal: 0x4A2A950C8
• Base-36: 95989U0

Squares and roots of 19908874440

• 19908874440 squared (19908874440²) is 396363281467685313600
• 19908874440 cubed (19908874440³) is 7891146803366525825894424384000
• The square root of 19908874440 is 141098.8109092349
• The cube root of 19908874440 is 2710.2887924513

Scales and comparisons

• 19,908,874,440 seconds is equal to 633 years, 2 weeks, 18 hours, 54 minutes.
• To count from 1 to 19,908,874,440 would take you about one thousand, two hundred sixty-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 19908874440 cubic inches would be around 225.9 feet tall.

Recreational maths with 19908874440

• 19908874440 backwards is 04447880991
• 19908874440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19908874440's digits is 54
• More coming soon!