138918311912205

Names of 138918311912205

• Cardinal: 138918311912205 can be written as One hundred thirty-eight trillion, nine hundred eighteen billion, three hundred eleven million, nine hundred twelve thousand, two hundred five.

Scientific notation

• Scientific notation: 1.38918311912205 × 10¹⁴

Factors of 138918311912205

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 182

Divisors of 138918311912205

• Number of divisors d(n): 210
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 49 63 81 105 135 147 167 189 243 245 315 405 441 501 567 729 735 835 945 1169 1215 1323 1503 1701 2205 2505 2835 3507 3645 3969 4509 5103 5845 6615 7515 8183 8505 10521 11907 13527 17535 19845 22545 24549 25515 27889 31563 35721 40581 40915 52605 59535 67635 73647 83667 94689 121743 122745 139445 157815 178605 195223 202905 220941 251001 284067 368235 418335 473445 585669 608715 662823 753003 852201 976115 1104705 1255005 1366561 1420335 1757007 1988469 2259009 2928345 3314115 3765015 4099683 4261005 4657463 5271021 5965407 6777027 6832805 8785035 9942345 11295045 12299049 13972389 15813063 20331081 20498415 23287315 26355105 29827035 32602241 33885135 36897147 41917167 47439189 61495245 69861945 79065315 97806723 101655405 110691441 125751501 142317567 163011205 184485735 209585835 228215687 237195945 293420169 332074323 377254503 489033615 553457205 628757505 684647061 711587835 777796321 880260507 996222969 1131763509 1141078435 1467100845 1660371615 1886272515 2053941183 2333388963 2640781521 3395290527 3423235305 3888981605 4401302535 4981114845 5444574247 5658817545 6161823549 7000166889 7922344563 10269705915 11666944815 13203907605 16333722741 16976452635 18485470647 21000500667 23767033689 27222871235 30809117745 35000834445 38112019729 39611722815 49001168223 55456411941 63001502001 81668613705 92427353235 105002503335 114336059187 118835168445 147003504669 166369235823 189004506003 190560098645 245005841115 277282059705 315007510005 343008177561 441010514007 567013518009 571680295935 735017523345 831846179115 945022530015 1029024532683 1323031542021 1715040887805 2205052570035 2835067590045 3087073598049 3969094626063 5145122663415 6615157710105 9261220794147 15435367990245 19845473130315 27783662382441 46306103970735 138918311912205
• Sum of all divisors σ(n): 292496407056846
• Sum of proper divisors (its aliquot sum) s(n): 153578095144641
• 138918311912205 is an abundant number, because the sum of its proper divisors (153578095144641) is greater than itself. Its abundance is 14659783232436

Bases of 138918311912205

• Binary: 11111100101100001110000101000100110001100001101₂
• Hexadecimal: 0x7E5870A2630D
• Base-36: 1D8Q6W5BT9

Squares and roots of 138918311912205

• 138918311912205 squared (138918311912205²) is 19298297384536677603627962025
• 138918311912205 cubed (138918311912205³) is 2680886895439556135908803950302584874015125
• The square root of 138918311912205 is 11786361.2668289189
• The cube root of 138918311912205 is 51790.8651413359

Scales and comparisons

• 138,918,311,912,205 seconds is equal to 4,417,172 years, 32 weeks, 7 hours, 36 minutes, 45 seconds.
• To count from 1 to 138,918,311,912,205 would take you about eleven million, forty-two thousand, nine hundred thirty-one 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 138918311912205 cubic inches would be around 4315.9 feet tall.

Recreational maths with 138918311912205

• 138918311912205 backwards is 502219113819831
• The number of decimal digits it has is: 15
• The sum of 138918311912205's digits is 54
• More coming soon!