138902111172

Names of 138902111172

• Cardinal: 138902111172 can be written as One hundred thirty-eight billion, nine hundred two million, one hundred eleven thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 1.38902111172 × 10¹¹

Factors of 138902111172

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 999

Divisors of 138902111172

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 121 132 198 242 297 363 396 484 594 726 983 1089 1188 1331 1452 1966 2178 2662 2949 3267 3932 3993 4356 5324 5898 6534 7986 8847 10813 11796 11979 13068 15972 17694 21626 23958 26541 32439 35388 35937 43252 47916 53082 64878 71874 97317 106164 118943 129756 143748 194634 237886 291951 356829 389268 475772 583902 713658 966289 1070487 1167804 1308373 1427316 1932578 2140974 2616746 2898867 3211461 3865156 3925119 4281948 5233492 5797734 6422922 7850238 8696601 10629179 11595468 11775357 12845844 15700476 17393202 21258358 23550714 26089803 31887537 34786404 35326071 42516716 47101428 52179606 63775074 70652142 95662611 104359212 116920969 127550148 141304284 191325222 233841938 286987833 350762907 382650444 467683876 573975666 701525814 1052288721 1147951332 1286130659 1403051628 2104577442 2572261318 3156866163 3858391977 4209154884 5144522636 6313732326 7716783954 11575175931 12627464652 15433567908 23150351862 34725527793 46300703724 69451055586 138902111172
• Sum of all divisors σ(n): 396504548160
• Sum of proper divisors (its aliquot sum) s(n): 257602436988
• 138902111172 is an abundant number, because the sum of its proper divisors (257602436988) is greater than itself. Its abundance is 118700325816

Bases of 138902111172

• Binary: 10000001010111001101100000001111000100₂
• Hexadecimal: 0x20573603C4
• Base-36: 1RT6QAX0

Squares and roots of 138902111172

• 138902111172 squared (138902111172²) is 19293796488038647213584
• 138902111172 cubed (138902111172³) is 2679949064711487343493732796560448
• The square root of 138902111172 is 372695.7353820943
• The cube root of 138902111172 is 5178.8851768733

Scales and comparisons

• 138,902,111,172 seconds is equal to 4,416 years, 34 weeks, 1 day, 7 hours, 46 minutes, 12 seconds.
• To count from 1 to 138,902,111,172 would take you about eight thousand, eight hundred thirty-three 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 138902111172 cubic inches would be around 431.6 feet tall.

Recreational maths with 138902111172

• 138902111172 backwards is 271111209831
• 138902111172 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138902111172's digits is 36
• More coming soon!