157449789

Names of 157449789

• Cardinal: 157449789 can be written as One hundred fifty-seven million, four hundred forty-nine thousand, seven hundred eighty-nine.

Scientific notation

• Scientific notation: 1.57449789 × 10⁸

Factors of 157449789

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 95

Divisors of 157449789

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 7 9 19 21 23 43 49 57 63 69 129 133 147 161 171 207 301 361 387 399 437 441 483 817 903 931 989 1083 1127 1197 1311 1449 2107 2451 2527 2709 2793 2967 3059 3249 3381 3933 5719 6321 6923 7353 7581 8303 8379 8901 9177 10143 15523 17157 17689 18791 18963 20769 21413 22743 24909 27531 40033 46569 48461 51471 53067 56373 58121 62307 64239 74727 108661 120099 131537 139707 145383 159201 169119 174363 192717 325983 357029 360297 394611 406847 436149 523089 760627 920759 977949 1071087 1183833 1220541 2281881 2499203 2762277 3213261 3661623 6845643 7497609 8286831 17494421 22492827 52483263 157449789
• Sum of all divisors σ(n): 298130976
• Sum of proper divisors (its aliquot sum) s(n): 140681187
• 157449789 is a deficient number, because the sum of its proper divisors (140681187) is less than itself. Its deficiency is 16768602

Bases of 157449789

• Binary: 1001011000100111111000111101₂
• Hexadecimal: 0x9627E3D
• Base-36: 2LQP19

Squares and roots of 157449789

• 157449789 squared (157449789²) is 24790436056144521
• 157449789 cubed (157449789³) is 3903248926257946984956069
• The square root of 157449789 is 12547.8997844261
• The cube root of 157449789 is 539.9837546553

Scales and comparisons

• 157,449,789 seconds is equal to 5 years, 2 days, 8 hours, 3 minutes, 9 seconds.
• To count from 1 to 157,449,789 would take you about seven 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 157449789 cubic inches would be around 45 feet tall.

Recreational maths with 157449789

• 157449789 backwards is 987944751
• The number of decimal digits it has is: 9
• The sum of 157449789's digits is 54
• More coming soon!