138234891520

Names of 138234891520

• Cardinal: 138234891520 can be written as One hundred thirty-eight billion, two hundred thirty-four million, eight hundred ninety-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3823489152 × 10¹¹

Factors of 138234891520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2038

Divisors of 138234891520

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 41 44 55 64 80 82 88 110 121 128 160 164 176 205 220 242 256 320 328 352 410 440 451 484 605 640 656 704 820 880 902 968 1210 1280 1312 1331 1408 1640 1760 1804 1936 1979 2255 2420 2624 2662 2816 3280 3520 3608 3872 3958 4510 4840 4961 5248 5324 6560 6655 7040 7216 7744 7916 9020 9680 9895 9922 10496 10648 13120 13310 14080 14432 15488 15832 18040 19360 19790 19844 21296 21769 24805 26240 26620 28864 30976 31664 36080 38720 39580 39688 42592 43538 49610 52480 53240 54571 57728 63328 72160 77440 79160 79376 81139 85184 87076 99220 106480 108845 109142 115456 126656 144320 154880 158320 158752 162278 170368 174152 198440 212960 217690 218284 239459 253312 272855 288640 316640 317504 324556 340736 348304 396880 405695 425920 435380 436568 478918 506624 545710 577280 633280 635008 649112 696608 793760 811390 851840 870760 873136 892529 957836 1091420 1197295 1266560 1270016 1298224 1393216 1587520 1622780 1703680 1741520 1746272 1785058 1915672 2182840 2394590 2533120 2596448 2634049 2786432 3175040 3245560 3483040 3492544 3570116 3831344 4365680 4462645 4789180 5192896 5268098 5572864 6350080 6491120 6966080 6985088 7140232 7662688 8731360 8925290 9578360 9817819 10385792 10536196 12982240 13170245 13932160 13970176 14280464 15325376 17462720 17850580 19156720 19635638 20771584 21072392 25964480 26340490 27864320 28560928 30650752 34925440 35701160 38313440 39271276 42144784 49089095 51928960 52680980 57121856 61301504 69850880 71402320 76626880 78542552 84289568 98178190 103857920 105361960 107996009 114243712 142804640 153253760 157085104 168579136 196356380 210723920 215992018 228487424 285609280 306507520 314170208 337158272 392712760 421447840 431984036 539980045 571218560 628340416 674316544 785425520 842895680 863968072 1079960090 1142437120 1256680832 1570851040 1685791360 1727936144 2159920180 2513361664 3141702080 3371582720 3455872288 4319840360 6283404160 6911744576 8639680720 12566808320 13823489152 17279361440 27646978304 34558722880 69117445760 138234891520
• Sum of all divisors σ(n): 373273971840
• Sum of proper divisors (its aliquot sum) s(n): 235039080320
• 138234891520 is an abundant number, because the sum of its proper divisors (235039080320) is greater than itself. Its abundance is 96804188800

Bases of 138234891520

• Binary: 10000000101111011100010000110100000000₂
• Hexadecimal: 0x202F710D00
• Base-36: 1RI5HGXS

Squares and roots of 138234891520

• 138234891520 squared (138234891520²) is 19108885233546167910400
• 138234891520 cubed (138234891520³) is 2641514677327384386005849079808000
• The square root of 138234891520 is 371799.5313606513
• The cube root of 138234891520 is 5170.5795638191

Scales and comparisons

• 138,234,891,520 seconds is equal to 4,395 years, 22 weeks, 6 days, 20 hours, 58 minutes, 40 seconds.
• To count from 1 to 138,234,891,520 would take you about eight thousand, seven hundred ninety 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 138234891520 cubic inches would be around 430.9 feet tall.

Recreational maths with 138234891520

• 138234891520 backwards is 025198432831
• The number of decimal digits it has is: 12
• The sum of 138234891520's digits is 46
• More coming soon!