31390737840

Names of 31390737840

• Cardinal: 31390737840 can be written as Thirty-one billion, three hundred ninety million, seven hundred thirty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.139073784 × 10¹⁰

Factors of 31390737840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 5166

Divisors of 31390737840

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 27 28 30 33 35 36 37 40 42 44 45 48 54 55 56 60 63 66 70 72 74 77 80 84 88 90 99 105 108 110 111 112 120 126 132 135 140 144 148 154 165 168 176 180 185 189 198 210 216 220 222 231 240 252 259 264 270 280 296 297 308 315 330 333 336 360 370 378 385 396 407 420 432 440 444 462 495 504 518 528 540 555 560 592 594 616 630 660 666 693 720 740 756 770 777 792 814 840 880 888 924 945 990 999 1008 1036 1080 1110 1155 1188 1221 1232 1260 1295 1320 1332 1386 1480 1485 1512 1540 1554 1584 1628 1665 1680 1776 1848 1890 1980 1998 2035 2072 2079 2160 2220 2310 2331 2376 2442 2520 2590 2640 2664 2772 2849 2960 2970 3024 3080 3108 3256 3330 3465 3663 3696 3780 3885 3960 3996 4070 4144 4158 4440 4620 4662 4752 4884 4995 5040 5101 5180 5328 5544 5698 5940 6105 6160 6216 6512 6660 6930 6993 7326 7560 7770 7920 7992 8140 8316 8547 8880 9240 9324 9768 9990 10202 10360 10395 10989 11088 11396 11655 11880 12210 12432 13320 13860 13986 14245 14652 15120 15303 15540 15984 16280 16632 17094 18315 18480 18648 19536 19980 20404 20720 20790 21978 22792 23310 23760 24420 25505 25641 26640 27720 27972 28490 29304 30606 31080 32560 33264 34188 34965 35707 36630 37296 39960 40808 41580 42735 43956 45584 45909 46620 48840 51010 51282 54945 55440 55944 56111 56980 58608 61212 62160 68376 69930 71414 73260 76515 76923 79920 81616 83160 85470 87912 91818 93240 97680 102020 102564 107121 109890 111888 112222 113960 122424 128205 136752 137727 139860 142828 146520 153030 153846 166320 168333 170940 175824 178535 183636 186480 188737 204040 205128 214242 219780 224444 227920 229545 244848 256410 275454 279720 280555 285656 293040 306060 307692 321363 336666 341880 357070 367272 377474 384615 392777 408080 410256 428484 439560 448888 459090 504999 512820 535605 550908 559440 561110 566211 571312 612120 615384 642726 673332 683760 688635 714140 734544 754948 769230 785554 841665 856968 879120 897776 918180 943685 964089 1009998 1025640 1071210 1101816 1122220 1132422 1178331 1224240 1230768 1285452 1321159 1346664 1377270 1428280 1509896 1514997 1538460 1571108 1606815 1683330 1698633 1713936 1836360 1887370 1928178 1963885 2019996 2051280 2076107 2142420 2203632 2244440 2264844 2356662 2524995 2570904 2642318 2693328 2754540 2831055 2856560 3019792 3029994 3076920 3142216 3213630 3366660 3397266 3534993 3672720 3774740 3856356 3927770 3963477 4039992 4152214 4284840 4488880 4529688 4713324 4820445 5049990 5095899 5141808 5284636 5509080 5662110 5891655 6059988 6153840 6228321 6284432 6427260 6605795 6733320 6794532 7069986 7549480 7574985 7712712 7855540 7926954 8079984 8304428 8493165 8569680 9059376 9426648 9640890 10099980 10191798 10380535 10569272 10604979 11018160 11324220 11783310 11890431 12119976 12456642 12854520 13211590 13466640 13589064 14139972 14532749 15098960 15149970 15425424 15711080 15853908 16608856 16986330 17674965 18684963 18853296 19281780 19817385 20199960 20383596 20761070 21138544 21209958 22648440 23566620 23780862 24239952 24913284 25479495 25709040 26423180 27178128 28279944 29065498 30299940 31141605 31422160 31707816 33217712 33972660 35349930 35671293 37369926 38563560 39634770 40399920 40767192 41522140 42419916 43598247 45296880 47133240 47561724 49826568 50958990 52846360 53024895 56054889 56559888 58130996 59452155 60599880 62283210 63415632 67945320 70699860 71342586 72663745 74739852 77127120 79269540 81534384 83044280 84839832 87196494 93424815 94266480 95123448 99653136 101917980 105692720 106049790 112109778 116261992 118904310 121199760 124566420 130794741 135890640 141399720 142685172 145327490 149479704 158539080 166088560 169679664 174392988 178356465 186849630 190246896 203835960 212099580 217991235 224219556 232523984 237808620 249132840 261589482 280274445 282799440 285370344 290654980 298959408 317078160 348785976 356712930 373699260 392384223 407671920 424199160 435982470 448439112 475617240 498265680 523178964 560548890 570740688 581309960 653973705 697571952 713425860 747398520 784768446 848398320 871964940 896878224 951234480 1046357928 1121097780 1162619920 1307947410 1426851720 1494797040 1569536892 1743929880 1961921115 2092715856 2242195560 2615894820 2853703440 3139073784 3487859760 3923842230 4484391120 5231789640 6278147568 7847684460 10463579280 15695368920 31390737840
• Sum of all divisors σ(n): 138473994240
• Sum of proper divisors (its aliquot sum) s(n): 107083256400
• 31390737840 is an abundant number, because the sum of its proper divisors (107083256400) is greater than itself. Its abundance is 75692518560

Bases of 31390737840

• Binary: 11101001111000010001010010110110000₂
• Hexadecimal: 0x74F08A5B0
• Base-36: EF58GC0

Squares and roots of 31390737840

• 31390737840 squared (31390737840²) is 985378422139607865600
• 31390737840 cubed (31390737840³) is 30931755722577282389451554304000
• The square root of 31390737840 is 177174.3148427559
• The cube root of 31390737840 is 3154.5240391339

Scales and comparisons

• 31,390,737,840 seconds is equal to 998 years, 6 weeks, 4 days, 17 hours, 24 minutes.
• To count from 1 to 31,390,737,840 would take you about one thousand, nine hundred ninety-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 31390737840 cubic inches would be around 262.9 feet tall.

Recreational maths with 31390737840

• 31390737840 backwards is 04873709313
• 31390737840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31390737840's digits is 45
• More coming soon!