28742715225

Names of 28742715225

• Cardinal: 28742715225 can be written as Twenty-eight billion, seven hundred forty-two million, seven hundred fifteen thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 2.8742715225 × 10¹⁰

Factors of 28742715225

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 662

Divisors of 28742715225

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 5 7 9 15 21 25 35 45 49 63 71 73 75 105 147 175 213 219 225 245 315 355 365 441 497 503 511 525 639 657 735 1065 1095 1225 1491 1509 1533 1575 1775 1825 2205 2485 2515 2555 3195 3285 3479 3521 3577 3675 4473 4527 4599 5183 5325 5475 7455 7545 7665 10437 10563 10731 11025 12425 12575 12775 15549 15975 16425 17395 17605 17885 22365 22635 22995 24647 25915 31311 31689 32193 35713 36281 36719 37275 37725 38325 46647 52185 52815 53655 73941 77745 86975 88025 89425 107139 108843 110157 111825 113175 114975 123235 129575 156555 158445 160965 178565 181405 183595 221823 233235 249991 253967 257033 260925 264075 268275 321417 326529 330471 369705 388725 535695 544215 550785 616175 749973 761901 771099 782775 792225 804825 892825 907025 917975 1109115 1166175 1249955 1269835 1285165 1607085 1632645 1652355 1749937 1799231 1848525 2249919 2285703 2313297 2607049 2678475 2721075 2753925 3749865 3809505 3855495 5249811 5397693 5545575 6249775 6349175 6425825 7821147 8035425 8163225 8261775 8749685 8996155 11249595 11428515 11566485 13035245 15749433 16193079 18249343 18749325 19047525 19277475 23463441 26249055 26988465 39105735 43748425 44980775 54748029 56247975 57142575 57832425 65176225 78747165 80965395 91246715 117317205 127745401 131245275 134942325 164244087 195528675 273740145 383236203 393735825 404826975 456233575 586586025 638727005 821220435 1149708609 1368700725 1916181015 3193635025 4106102175 5748543045 9580905075 28742715225
• Sum of all divisors σ(n): 61684301952
• Sum of proper divisors (its aliquot sum) s(n): 32941586727
• 28742715225 is an abundant number, because the sum of its proper divisors (32941586727) is greater than itself. Its abundance is 4198871502

Bases of 28742715225

• Binary: 11010110001001100110000011101011001₂
• Hexadecimal: 0x6B1330759
• Base-36: D7CO509

Squares and roots of 28742715225

• 28742715225 squared (28742715225²) is 826143678505446800625
• 28742715225 cubed (28742715225³) is 23745612486216011001751727015625
• The square root of 28742715225 is 169536.7665876639
• The cube root of 28742715225 is 3063.2040721343

Scales and comparisons

• 28,742,715,225 seconds is equal to 913 years, 48 weeks, 2 days, 7 hours, 33 minutes, 45 seconds.
• To count from 1 to 28,742,715,225 would take you about one thousand, eight hundred twenty-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 28742715225 cubic inches would be around 255.3 feet tall.

Recreational maths with 28742715225

• 28742715225 backwards is 52251724782
• 28742715225 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28742715225's digits is 45
• More coming soon!