128828880

Names of 128828880

• Cardinal: 128828880 can be written as One hundred twenty-eight million, eight hundred twenty-eight thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.2882888 × 10⁸

Factors of 128828880

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 57

Divisors of 128828880

• Number of divisors d(n): 210
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 47 48 54 60 72 80 81 90 94 108 120 135 141 144 162 180 188 216 235 240 243 270 282 324 360 376 405 423 432 470 486 540 564 648 705 720 729 752 810 846 940 972 1080 1128 1215 1269 1296 1410 1458 1620 1692 1880 1944 2115 2160 2209 2256 2430 2538 2820 2916 3240 3384 3645 3760 3807 3888 4230 4418 4860 5076 5640 5832 6345 6480 6627 6768 7290 7614 8460 8836 9720 10152 11045 11280 11421 11664 12690 13254 14580 15228 16920 17672 19035 19440 19881 20304 22090 22842 25380 26508 29160 30456 33135 33840 34263 35344 38070 39762 44180 45684 50760 53016 57105 58320 59643 60912 66270 68526 76140 79524 88360 91368 99405 101520 106032 114210 119286 132540 137052 152280 159048 171315 176720 178929 182736 198810 228420 238572 265080 274104 298215 304560 318096 342630 357858 397620 456840 477144 530160 536787 548208 596430 685260 715716 795240 894645 913680 954288 1073574 1192860 1370520 1431432 1590480 1610361 1789290 2147148 2385720 2683935 2741040 2862864 3220722 3578580 4294296 4771440 5367870 6441444 7157160 8051805 8588592 10735740 12882888 14314320 16103610 21471480 25765776 32207220 42942960 64414440 128828880
• Sum of all divisors σ(n): 458843586
• Sum of proper divisors (its aliquot sum) s(n): 330014706
• 128828880 is an abundant number, because the sum of its proper divisors (330014706) is greater than itself. Its abundance is 201185826

Bases of 128828880

• Binary: 111101011011100010111010000₂
• Hexadecimal: 0x7ADC5D0
• Base-36: 24P900

Squares and roots of 128828880

• 128828880 squared (128828880²) is 16596880322054400
• 128828880 cubed (128828880³) is 2138157503384307651072000
• The square root of 128828880 is 11350.2810537887
• The cube root of 128828880 is 505.0539170613

Scales and comparisons

• 128,828,880 seconds is equal to 4 years, 5 weeks, 1 hour, 48 minutes.
• To count from 1 to 128,828,880 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 128828880 cubic inches would be around 42.1 feet tall.

Recreational maths with 128828880

• 128828880 backwards is 088828821
• 128828880 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 128828880's digits is 45
• More coming soon!