138170908458

Names of 138170908458

• Cardinal: 138170908458 can be written as One hundred thirty-eight billion, one hundred seventy million, nine hundred eight thousand, four hundred fifty-eight.

Scientific notation

• Scientific notation: 1.38170908458 × 10¹¹

Factors of 138170908458

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3775

Divisors of 138170908458

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 54 66 99 198 257 281 297 514 562 594 771 843 1542 1686 2313 2529 2827 3091 3221 4626 5058 5654 6182 6442 6939 7587 8481 9273 9663 13878 15174 16962 18546 19326 25443 27819 28989 35431 50886 55638 57978 70862 72217 76329 83457 86967 106293 144434 152658 166914 173934 212586 216651 318879 433302 637758 649953 794387 827797 905101 956637 1299906 1588774 1655594 1810202 1913274 1949859 2383161 2483391 2715303 3899718 4766322 4966782 5430606 7149483 7450173 8145909 9105767 9956111 14298966 14900346 16291818 18211534 19912222 21448449 22350519 24437727 27317301 29868333 42896898 44701038 48875454 54634602 59736666 81951903 89604999 163903806 179209998 232610957 245855709 268814997 465221914 491711418 537629994 697832871 1395665742 2093498613 2558720527 4186997226 5117441054 6280495839 7676161581 12560991678 15352323162 23028484743 46056969486 69085454229 138170908458
• Sum of all divisors σ(n): 337564558080
• Sum of proper divisors (its aliquot sum) s(n): 199393649622
• 138170908458 is an abundant number, because the sum of its proper divisors (199393649622) is greater than itself. Its abundance is 61222741164

Bases of 138170908458

• Binary: 10000000101011101000001011111100101010₂
• Hexadecimal: 0x202BA0BF2A
• Base-36: 1RH3E3AI

Squares and roots of 138170908458

• 138170908458 squared (138170908458²) is 19091199944109015937764
• 138170908458 cubed (138170908458³) is 2637848439830861557509252669207912
• The square root of 138170908458 is 371713.4762932331
• The cube root of 138170908458 is 5169.7816934583

Scales and comparisons

• 138,170,908,458 seconds is equal to 4,393 years, 21 weeks, 1 day, 7 hours, 54 minutes, 18 seconds.
• To count from 1 to 138,170,908,458 would take you about eight thousand, seven hundred eighty-six 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 138170908458 cubic inches would be around 430.8 feet tall.

Recreational maths with 138170908458

• 138170908458 backwards is 854809071831
• 138170908458 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138170908458's digits is 54
• More coming soon!