138556903940

Names of 138556903940

• Cardinal: 138556903940 can be written as One hundred thirty-eight billion, five hundred fifty-six million, nine hundred three thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.3855690394 × 10¹¹

Factors of 138556903940

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 529

Divisors of 138556903940

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 43 52 65 70 73 79 86 91 130 140 146 158 172 182 215 260 292 301 307 316 364 365 395 430 455 511 553 559 602 614 730 790 860 910 949 1022 1027 1106 1118 1204 1228 1460 1505 1535 1580 1820 1898 2044 2054 2149 2212 2236 2555 2765 2795 3010 3070 3139 3397 3796 3913 3991 4108 4298 4745 5110 5135 5530 5590 5767 6020 6140 6278 6643 6794 7189 7826 7982 8596 9490 10220 10270 10745 11060 11180 11534 12556 13201 13286 13588 14378 15652 15695 15964 16985 18980 19565 19955 20540 21490 21973 22411 23068 23779 24253 26402 26572 27937 28756 28835 31390 33215 33970 35945 39130 39910 40369 40807 42980 43946 44161 44822 47558 48506 52804 55874 57670 62780 66005 66430 67940 71890 74971 78260 79820 80738 81614 87892 88322 89644 92407 95116 97012 109865 111748 112055 115340 118895 121265 132010 132860 139685 143780 149942 156877 161476 163228 169771 171613 176644 184814 201845 204035 219730 220805 224110 237790 242530 247981 264020 279370 285649 291343 299884 309127 313754 315289 339542 343226 369628 374855 403690 408070 439460 441610 448220 462035 475580 485060 495962 524797 558740 571298 582686 618254 627508 630578 679084 686452 749710 784385 807380 816140 848855 858065 883220 924070 963673 991924 1042879 1049594 1142596 1165372 1201291 1236508 1239905 1261156 1428245 1456715 1499420 1545635 1568770 1576445 1697710 1716130 1735867 1770469 1848140 1927346 2039401 2085758 2099188 2207023 2402582 2479810 2623985 2856490 2913430 3091270 3137540 3152890 3223753 3395420 3432260 3471734 3540938 3854692 4078802 4171516 4414046 4805164 4818365 4959620 5214395 5247970 5712980 5826860 6006455 6182540 6305780 6447506 6745711 6943468 7081876 7300153 8157604 8679335 8828092 8852345 9636730 10197005 10428790 10495940 11035115 12012910 12393283 12527749 12895012 13491422 13557427 14600306 16118765 17358670 17704690 19273460 20394010 20857580 22070230 22566271 23016097 24025820 24786566 25055498 26982844 27114854 29200612 32237530 33728555 34717340 35409380 36500765 40788020 44140460 45132542 46032194 49573132 50110996 54229708 61966415 62638745 64475060 67457110 67787135 73001530 76130167 87694243 90265084 92064388 94901989 112831355 115080485 123932830 125277490 134914220 135574270 146003060 152260334 161112679 175388486 189803978 225662710 230160970 247865660 250554980 271148540 304520668 322225358 350776972 379607956 380650835 438471215 451325420 460321940 474509945 532911169 644450716 761301670 805563395 876942430 949019890 989692171 1065822338 1522603340 1611126790 1753884860 1898039780 1979384342 2131644676 2664555845 3222253580 3958768684 4948460855 5329111690 6927845197 9896921710 10658223380 13855690394 19793843420 27711380788 34639225985 69278451970 138556903940
• Sum of all divisors σ(n): 377391759360
• Sum of proper divisors (its aliquot sum) s(n): 238834855420
• 138556903940 is an abundant number, because the sum of its proper divisors (238834855420) is greater than itself. Its abundance is 100277951480

Bases of 138556903940

• Binary: 10000001000010101000101001001000000100₂
• Hexadecimal: 0x2042A29204
• Base-36: 1RNH7BB8

Squares and roots of 138556903940

• 138556903940 squared (138556903940²) is 19198015629438387523600
• 138556903940 cubed (138556903940³) is 2660017607406713296255939682984000
• The square root of 138556903940 is 372232.3252217625
• The cube root of 138556903940 is 5174.5913335637

Scales and comparisons

• 138,556,903,940 seconds is equal to 4,405 years, 35 weeks, 2 days, 20 hours, 52 minutes, 20 seconds.
• To count from 1 to 138,556,903,940 would take you about eight thousand, eight hundred eleven 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 138556903940 cubic inches would be around 431.2 feet tall.

Recreational maths with 138556903940

• 138556903940 backwards is 049309655831
• The number of decimal digits it has is: 12
• The sum of 138556903940's digits is 53
• More coming soon!