138387620847882172

Names of 138387620847882172

• Cardinal: 138387620847882172 can be written as One hundred thirty-eight quadrillion, three hundred eighty-seven trillion, six hundred twenty billion, eight hundred forty-seven million, eight hundred eighty-two thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 1.38387620847882172 × 10¹⁷

Factors of 138387620847882172

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 911

Divisors of 138387620847882172

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 13 26 52 127 169 254 338 508 676 769 1538 1651 2197 3076 3302 4394 6604 8788 9997 16129 19994 21463 28561 32258 39988 42926 57122 64516 85852 97663 114244 129961 195326 209677 259922 279019 390652 419354 519844 558038 591361 838708 1116076 1182722 1269619 1689493 2048383 2365444 2539238 2725801 3378986 3627247 4096766 5078476 5451602 6757972 7254494 7687693 8193532 10903204 12403201 14508988 15375386 16505047 21963409 24806402 26628979 30750772 33010094 35435413 43926818 49612804 53257958 66020188 70870826 75102847 87853636 99940009 106515916 141741652 150205694 161241613 199880018 214565611 300411388 322483226 346176727 399760036 429131222 460660369 644966452 692353454 858262444 921320738 976337011 1299220117 1384706908 1575206527 1842641476 1952674022 2096140969 2598440234 2789352943 3150413054 3905348044 4192281938 4500297451 5196880468 5578705886 6300826108 8384563876 9000594902 9538061569 11157411772 12692381143 16889861521 18001189804 19076123138 20477684851 25384762286 27249832597 33779723042 38152246276 40955369702 50769524572 54499665194 58503866863 67559446084 81910739404 108999330388 117007733726 123994800397 165000954859 234015467452 247989600794 266209903063 330001909718 354247823761 495979201588 532419806126 660003819436 708495647522 1064839612252 1211333819263 1416991295044 1611932405161 2145012413167 2422667638526 3223864810322 3460728739819 4290024826334 4845335277052 6447729620644 6921457479638 8580049652668 13842914959276 15747339650419 20955121267093 31494679300838 41910242534186 44989473617647 62989358601676 83820485068372 89978947235294 179957894470588 204715415455447 272416576472209 409430830910894 544833152944418 818861661821788 1089666305888836 2661300400920811 5322600801841622 10645201603683244 34596905211970543 69193810423941086 138387620847882172
• Sum of all divisors σ(n): 264785696556622080
• Sum of proper divisors (its aliquot sum) s(n): 126398075708739908
• 138387620847882172 is a deficient number, because the sum of its proper divisors (126398075708739908) is less than itself. Its deficiency is 11989545139142264

Bases of 138387620847882172

• Binary: 111101011101001101100111011010101111100110000111110111100₂
• Hexadecimal: 0x1EBA6CED5F30FBC
• Base-36: 11UMBFD2CCE4

Squares and roots of 138387620847882172

• 138387620847882172 squared (138387620847882172²) is 19151133603937192365925457595437584
• 138387620847882172 cubed (138387620847882172³) is 2650279815988795437371047588846225884423596012352448
• The square root of 138387620847882172 is 372004866.6991900685
• The cube root of 138387620847882172 is 517248.3107555929

Scales and comparisons

• 138,387,620,847,882,172 seconds is equal to 4,400,298,281 years, 49 weeks, 1 day, 6 hours, 22 minutes, 52 seconds.
• To count from 1 to 138,387,620,847,882,172 would take you about thirteen billion, two hundred million, eight hundred ninety-four thousand, eight hundred forty-five 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 138387620847882172 cubic inches would be around 43104 feet tall.

Recreational maths with 138387620847882172

• 138387620847882172 backwards is 271288748026783831
• The number of decimal digits it has is: 18
• The sum of 138387620847882172's digits is 85
• More coming soon!