145388731215

Names of 145388731215

• Cardinal: 145388731215 can be written as One hundred forty-five billion, three hundred eighty-eight million, seven hundred thirty-one thousand, two hundred fifteen.

Scientific notation

• Scientific notation: 1.45388731215 × 10¹¹

Factors of 145388731215

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2034

Divisors of 145388731215

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 5 7 13 15 19 21 35 39 41 57 65 73 91 95 105 123 133 195 205 219 247 273 285 287 365 399 455 511 533 615 665 741 779 861 949 1095 1235 1365 1387 1435 1533 1599 1729 1873 1995 2337 2555 2665 2847 2993 3705 3731 3895 4161 4305 4745 5187 5453 5619 6643 6935 7665 7995 8645 8979 9365 9709 10127 11193 11685 13111 14235 14965 16359 18031 18655 19929 20805 20951 24349 25935 27265 28095 29127 30381 33215 35587 38909 39333 44895 48545 50635 54093 55965 56867 62853 65555 70889 73047 76793 81795 90155 99645 104755 106761 116727 121745 126217 136729 145635 151905 170443 170601 177935 194545 196665 212667 230379 249109 270465 272363 284335 314265 354445 365235 378651 383965 398069 410187 462631 511329 533805 537551 583635 631085 683645 739271 747327 817089 852215 853005 957103 998309 1063335 1151895 1194207 1245545 1361815 1387893 1459067 1612653 1777477 1893255 1990345 2050935 2217813 2313155 2556645 2597851 2687755 2871309 2994927 3238417 3696355 3736635 4085445 4377201 4785515 4991545 5174897 5332431 5605889 5971035 6939465 6988163 7295335 7793553 8063265 8887385 9715251 10213469 11089065 12442339 12989255 14356545 14974635 15524691 16192085 16817667 18184957 18967871 20964489 21886005 25874485 26662155 28029445 30640407 33772063 34940815 37327017 38967765 39241223 48576255 51067345 54554871 56903613 62211695 72876557 77623455 84088335 90924785 94839355 101316189 104822445 106511891 117723669 132775097 153202035 168860315 186635085 196206115 218629671 236404441 272774355 284518065 319535673 364382785 398325291 506580945 510135899 532559455 588618345 663875485 709213323 745583237 1093148355 1182022205 1384654583 1530407697 1597678365 1991626455 2236749711 2550679495 3546066615 3727916185 4153963749 6923272915 7652038485 9692582081 11183748555 20769818745 29077746243 48462910405 145388731215
• Sum of all divisors σ(n): 313119313920
• Sum of proper divisors (its aliquot sum) s(n): 167730582705
• 145388731215 is an abundant number, because the sum of its proper divisors (167730582705) is greater than itself. Its abundance is 22341851490

Bases of 145388731215

• Binary: 10000111011001110101111111101101001111₂
• Hexadecimal: 0x21D9D7FB4F
• Base-36: 1USGP2Z3

Squares and roots of 145388731215

• 145388731215 squared (145388731215²) is 21137883164307515376225
• 145388731215 cubed (145388731215³) is 3073210013829579034638456126363375
• The square root of 145388731215 is 381298.7427398627
• The cube root of 145388731215 is 5258.2784731797

Scales and comparisons

• 145,388,731,215 seconds is equal to 4,622 years, 47 weeks, 2 days, 22 hours, 40 minutes, 15 seconds.
• To count from 1 to 145,388,731,215 would take you about nine thousand, two 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 145388731215 cubic inches would be around 438.2 feet tall.

Recreational maths with 145388731215

• 145388731215 backwards is 512137883541
• The number of decimal digits it has is: 12
• The sum of 145388731215's digits is 48
• More coming soon!