3997131840

Names of 3997131840

• Cardinal: 3997131840 can be written as Three billion, nine hundred ninety-seven million, one hundred thirty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.99713184 × 10⁹

Factors of 3997131840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1915

Divisors of 3997131840

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 19 20 24 26 27 30 32 36 38 39 40 45 48 52 54 57 60 64 65 72 76 78 80 90 95 96 104 108 114 117 120 130 135 144 152 156 160 171 180 190 192 195 208 216 228 234 240 247 260 270 285 288 304 312 320 342 351 360 380 390 416 432 456 468 480 494 513 520 540 570 576 585 608 624 684 702 720 741 760 780 832 855 864 912 936 960 988 1026 1040 1080 1140 1170 1216 1235 1248 1368 1404 1440 1482 1520 1560 1710 1728 1755 1824 1872 1873 1976 2052 2080 2160 2223 2280 2340 2470 2496 2565 2736 2808 2880 2964 3040 3120 3420 3510 3648 3705 3744 3746 3952 4104 4160 4320 4446 4560 4680 4940 5130 5472 5616 5619 5928 6080 6240 6669 6840 7020 7410 7488 7492 7904 8208 8640 8892 9120 9360 9365 9880 10260 10944 11115 11232 11238 11856 12480 13338 13680 14040 14820 14984 15808 16416 16857 17784 18240 18720 18730 19760 20520 22230 22464 22476 23712 24349 26676 27360 28080 28095 29640 29968 32832 33345 33714 35568 35587 37440 37460 39520 41040 44460 44952 47424 48698 50571 53352 54720 56160 56190 59280 59936 66690 67428 71136 71174 73047 74920 79040 82080 84285 88920 89904 97396 101142 106704 106761 112320 112380 118560 119872 121745 133380 134856 142272 142348 146094 149840 164160 168570 177840 177935 179808 194792 202284 213408 213522 219141 224760 237120 243490 252855 266760 269712 284696 292188 299680 320283 337140 355680 355870 359616 365235 389584 404568 426816 427044 438282 449520 462631 486980 505710 533520 533805 539424 569392 584376 599360 640566 657423 674280 711360 711740 730470 779168 809136 854088 876564 899040 925262 960849 973960 1011420 1067040 1067610 1078848 1095705 1138784 1168752 1281132 1314846 1348560 1387893 1423480 1460940 1558336 1601415 1618272 1708176 1753128 1798080 1850524 1921698 1947920 2022840 2134080 2135220 2191410 2277568 2313155 2337504 2562264 2629692 2697120 2775786 2846960 2921880 3202830 3236544 3287115 3416352 3506256 3701048 3843396 3895840 4045680 4163679 4270440 4382820 4626310 4675008 4804245 5124528 5259384 5394240 5551572 5693920 5843760 6405660 6574230 6832704 6939465 7012512 7402096 7686792 7791680 8091360 8327358 8540880 8765640 9252620 9608490 10249056 10518768 11103144 11387840 11687520 12491037 12811320 13148460 13878930 14025024 14804192 15373584 16182720 16654716 17081760 17531280 18505240 19216980 20498112 20818395 21037536 22206288 23375040 24982074 25622640 26296920 27757860 29608384 30747168 33309432 34163520 35062560 37010480 38433960 41636790 42075072 44412576 49964148 51245280 52593840 55515720 61494336 62455185 66618864 70125120 74020960 76867920 83273580 88825152 99928296 102490560 105187680 111031440 124910370 133237728 148041920 153735840 166547160 199856592 210375360 222062880 249820740 266475456 307471680 333094320 399713184 444125760 499641480 666188640 799426368 999282960 1332377280 1998565920 3997131840
• Sum of all divisors σ(n): 15993465600
• Sum of proper divisors (its aliquot sum) s(n): 11996333760
• 3997131840 is an abundant number, because the sum of its proper divisors (11996333760) is greater than itself. Its abundance is 7999201920

Bases of 3997131840

• Binary: 11101110001111110110010001000000₂
• Hexadecimal: 0xEE3F6440
• Base-36: 1U3SEO0

Squares and roots of 3997131840

• 3997131840 squared (3997131840²) is 15977062946341785600
• 3997131840 cubed (3997131840³) is 63862427012506962744213504000
• The square root of 3997131840 is 63222.8743414913
• The cube root of 3997131840 is 1587.0215512311

Scales and comparisons

• 3,997,131,840 seconds is equal to 127 years, 5 weeks, 2 hours, 24 minutes.
• To count from 1 to 3,997,131,840 would take you about two hundred fifty-four 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 3997131840 cubic inches would be around 132.3 feet tall.

Recreational maths with 3997131840

• 3997131840 backwards is 0481317993
• 3997131840 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 3997131840's digits is 45
• More coming soon!