85015728

Names of 85015728

• Cardinal: 85015728 can be written as Eighty-five million, fifteen thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 8.5015728 × 10⁷

Factors of 85015728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 247

Divisors of 85015728

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 23 24 28 36 38 42 46 48 56 57 63 69 72 76 84 92 112 114 126 133 138 144 152 161 168 171 184 193 207 228 252 266 276 304 322 336 342 368 386 399 414 437 456 483 504 532 552 579 644 684 772 798 828 874 912 966 1008 1064 1104 1158 1197 1288 1311 1351 1368 1449 1544 1596 1656 1737 1748 1932 2128 2316 2394 2576 2622 2702 2736 2898 3059 3088 3192 3312 3474 3496 3667 3864 3933 4053 4439 4632 4788 5244 5404 5796 6118 6384 6948 6992 7334 7728 7866 8106 8878 9177 9264 9576 10488 10808 11001 11592 12159 12236 13317 13896 14668 15732 16212 17756 18354 19152 20976 21616 22002 23184 24318 24472 25669 26634 27531 27792 29336 31073 31464 32424 33003 35512 36708 39951 44004 48636 48944 51338 53268 55062 58672 62146 62928 64848 66006 71024 73416 77007 79902 84341 88008 93219 97272 102676 106536 110124 124292 132012 146832 154014 159804 168682 176016 186438 194544 205352 213072 220248 231021 248584 253023 264024 279657 308028 319608 337364 372876 410704 440496 462042 497168 506046 528048 559314 590387 616056 639216 674728 745752 759069 924084 1012092 1118628 1180774 1232112 1349456 1491504 1518138 1771161 1848168 2024184 2237256 2361548 3036276 3542322 3696336 4048368 4474512 4723096 5313483 6072552 7084644 9446192 10626966 12145104 14169288 21253932 28338576 42507864 85015728
• Sum of all divisors σ(n): 300218880
• Sum of proper divisors (its aliquot sum) s(n): 215203152
• 85015728 is an abundant number, because the sum of its proper divisors (215203152) is greater than itself. Its abundance is 130187424

Bases of 85015728

• Binary: 101000100010011110010110000₂
• Hexadecimal: 0x5113CB0
• Base-36: 1EM6K0

Squares and roots of 85015728

• 85015728 squared (85015728²) is 7227674007369984
• 85015728 cubed (85015728³) is 614465967483236555108352
• The square root of 85015728 is 9220.3973883993
• The cube root of 85015728 is 439.7100844991

Scales and comparisons

• 85,015,728 seconds is equal to 2 years, 36 weeks, 3 days, 23 hours, 28 minutes, 48 seconds.
• To count from 1 to 85,015,728 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 85015728 cubic inches would be around 36.6 feet tall.

Recreational maths with 85015728

• 85015728 backwards is 82751058
• 85015728 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 85015728's digits is 36
• More coming soon!