87428880

Names of 87428880

• Cardinal: 87428880 can be written as Eighty-seven million, four hundred twenty-eight thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 8.742888 × 10⁷

Factors of 87428880

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 130

Divisors of 87428880

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 24 28 30 33 35 36 38 40 42 44 45 48 55 56 57 60 63 66 70 72 76 77 80 83 84 88 90 95 99 105 110 112 114 120 126 132 133 140 144 152 154 165 166 168 171 176 180 190 198 209 210 220 228 231 240 249 252 264 266 280 285 304 308 315 330 332 336 342 360 380 385 396 399 415 418 420 440 456 462 495 498 504 528 532 560 570 581 616 627 630 660 664 665 684 693 720 747 760 770 792 798 830 836 840 855 880 912 913 924 990 996 1008 1045 1064 1140 1155 1162 1197 1232 1245 1254 1260 1320 1328 1330 1368 1386 1463 1494 1520 1540 1577 1584 1596 1660 1672 1680 1710 1743 1826 1848 1881 1980 1992 1995 2090 2128 2280 2310 2324 2394 2490 2508 2520 2640 2660 2736 2739 2772 2905 2926 2988 3080 3135 3154 3192 3320 3344 3420 3465 3486 3652 3696 3735 3762 3960 3984 3990 4180 4389 4560 4565 4620 4648 4731 4788 4980 5016 5040 5229 5320 5478 5544 5810 5852 5976 5985 6160 6270 6308 6384 6391 6640 6840 6930 6972 7304 7315 7470 7524 7885 7920 7980 8217 8360 8715 8778 9130 9240 9296 9405 9462 9576 9960 10032 10458 10640 10956 11039 11088 11620 11704 11952 11970 12540 12616 12782 13167 13680 13695 13860 13944 14193 14608 14630 14940 15048 15770 15960 16434 16720 17347 17430 17556 18260 18480 18810 18924 19152 19173 19920 20916 21912 21945 22078 23240 23408 23655 23940 25080 25232 25564 26145 26334 27390 27720 27888 28386 29260 29880 30096 31540 31920 31955 32868 33117 34694 34860 35112 36520 37620 37848 38346 41085 41832 43824 43890 44156 46480 47310 47880 50160 51128 52041 52290 52668 54780 55195 55440 56772 57519 58520 59760 63080 63910 65736 65835 66234 69388 69720 70224 70965 73040 75240 75696 76692 82170 83664 86735 87780 88312 94620 95760 95865 99351 102256 104082 104580 105336 109560 110390 113544 115038 117040 121429 126160 127820 131472 131670 132468 138776 139440 141930 150480 153384 156123 164340 165585 173470 175560 176624 189240 191730 198702 208164 209160 210672 219120 220780 227088 230076 242858 255640 260205 263340 264936 277552 283860 287595 306768 312246 328680 331170 346940 351120 364287 378480 383460 397404 416328 418320 441560 460152 485716 496755 511280 520410 526680 529872 567720 575190 607145 624492 657360 662340 693880 728574 766920 780615 794808 832656 883120 920304 971432 993510 1040820 1053360 1092861 1135440 1150380 1214290 1248984 1324680 1387760 1457148 1533840 1561230 1589616 1821435 1942864 1987020 2081640 2185722 2300760 2428580 2497968 2649360 2914296 3122460 3642870 3974040 4163280 4371444 4601520 4857160 5464305 5828592 6244920 7285740 7948080 8742888 9714320 10928610 12489840 14571480 17485776 21857220 29142960 43714440 87428880
• Sum of all divisors σ(n): 389975040
• Sum of proper divisors (its aliquot sum) s(n): 302546160
• 87428880 is an abundant number, because the sum of its proper divisors (302546160) is greater than itself. Its abundance is 215117280

Bases of 87428880

• Binary: 101001101100000111100010000₂
• Hexadecimal: 0x5360F10
• Base-36: 1G1WK0

Squares and roots of 87428880

• 87428880 squared (87428880²) is 7643809058054400
• 87428880 cubed (87428880³) is 668289664879551171072000
• The square root of 87428880 is 9350.3411702461
• The cube root of 87428880 is 443.8316868731

Scales and comparisons

• 87,428,880 seconds is equal to 2 years, 40 weeks, 3 days, 21 hours, 48 minutes.
• To count from 1 to 87,428,880 would take you about four 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 87428880 cubic inches would be around 37 feet tall.

Recreational maths with 87428880

• 87428880 backwards is 08882478
• 87428880 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 87428880's digits is 45
• More coming soon!