128838528

Names of 128838528

• Cardinal: 128838528 can be written as One hundred twenty-eight million, eight hundred thirty-eight thousand, five hundred twenty-eight.

Scientific notation

• Scientific notation: 1.28838528 × 10⁸

Factors of 128838528

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1254

Divisors of 128838528

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 32 36 39 42 48 52 56 63 64 72 78 84 91 96 104 112 117 126 128 144 156 168 182 192 208 224 234 252 273 288 312 336 364 384 416 448 468 504 546 576 624 672 728 819 832 896 936 1008 1092 1152 1229 1248 1344 1456 1638 1664 1872 2016 2184 2458 2496 2688 2912 3276 3687 3744 4032 4368 4916 4992 5824 6552 7374 7488 8064 8603 8736 9832 11061 11648 13104 14748 14976 15977 17206 17472 19664 22122 25809 26208 29496 31954 34412 34944 39328 44244 47931 51618 52416 58992 63908 68824 77427 78656 88488 95862 103236 104832 111839 117984 127816 137648 143793 154854 157312 176976 191724 206472 223678 235968 255632 275296 287586 309708 335517 353952 383448 412944 447356 471936 511264 550592 575172 619416 671034 707904 766896 825888 894712 1006551 1022528 1101184 1150344 1238832 1342068 1415808 1533792 1651776 1789424 2013102 2045056 2300688 2477664 2684136 3067584 3303552 3578848 4026204 4601376 4955328 5368272 6135168 7157696 8052408 9202752 9910656 10736544 14315392 16104816 18405504 21473088 32209632 42946176 64419264 128838528
• Sum of all divisors σ(n): 456674400
• Sum of proper divisors (its aliquot sum) s(n): 327835872
• 128838528 is an abundant number, because the sum of its proper divisors (327835872) is greater than itself. Its abundance is 198997344

Bases of 128838528

• Binary: 111101011011110101110000000₂
• Hexadecimal: 0x7ADEB80
• Base-36: 24PGG0

Squares and roots of 128838528

• 128838528 squared (128838528²) is 16599366297206784
• 128838528 cubed (128838528³) is 2138637919464932562173952
• The square root of 128838528 is 11350.7060573341
• The cube root of 128838528 is 505.0665245827

Scales and comparisons

• 128,838,528 seconds is equal to 4 years, 5 weeks, 4 hours, 28 minutes, 48 seconds.
• To count from 1 to 128,838,528 would take you about 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 128838528 cubic inches would be around 42.1 feet tall.

Recreational maths with 128838528

• 128838528 backwards is 825838821
• The number of decimal digits it has is: 9
• The sum of 128838528's digits is 45
• More coming soon!