728428020201

Names of 728428020201

• Cardinal: 728428020201 can be written as Seven hundred twenty-eight billion, four hundred twenty-eight million, twenty thousand, two hundred one.

Scientific notation

• Scientific notation: 7.28428020201 × 10¹¹

Factors of 728428020201

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 27024

Divisors of 728428020201

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 7 9 21 23 27 31 63 67 69 81 93 161 189 201 207 217 279 469 483 567 603 621 651 713 837 1407 1449 1541 1809 1863 1953 2077 2139 2511 4221 4347 4623 4991 5427 5859 6231 6417 10787 12663 13041 13869 14539 14973 17577 18693 19251 26893 32361 37989 41607 43617 44919 47771 56079 57753 80679 97083 124821 130851 134757 143313 168237 188251 242037 291249 334397 392553 404271 429939 564753 618539 726111 833683 873747 1003191 1177659 1289817 1694259 1801831 1855617 2178333 2501049 3009573 3869451 4329773 5082777 5405493 5566851 5835781 7503147 9028719 12612817 12989319 15248331 16216479 16700553 17507343 19174709 22509441 27086157 37838451 38967957 41442113 48649437 50101659 52522029 55856761 57524127 67528323 113515353 116903871 124326339 134222963 145948311 157566087 167570283 172572381 290094791 340546059 350711613 372979017 390997327 402668889 472698261 502710849 517717143 870284373 1021638177 1118937051 1172991981 1208006667 1284705503 1508132547 1553151429 2610853119 3356811153 3518975943 3624020001 3854116509 4524397641 7832559357 8992938521 10556927829 10872060003 11562349527 23497678071 26978815563 31670783487 34687048581 80936446689 104061145743 242809340067 728428020201
• Sum of all divisors σ(n): 1359567863808
• Sum of proper divisors (its aliquot sum) s(n): 631139843607
• 728428020201 is a deficient number, because the sum of its proper divisors (631139843607) is less than itself. Its deficiency is 97288176594

Bases of 728428020201

• Binary: 1010100110011001101100011000000111101001₂
• Hexadecimal: 0xA999B181E9
• Base-36: 9AMV8HK9

Squares and roots of 728428020201

• 728428020201 squared (728428020201²) is 530607380613948464080401
• 728428020201 cubed (728428020201³) is 386509283764656947575531262516180601
• The square root of 728428020201 is 853479.9471581041
• The cube root of 728428020201 is 8997.6455577871

Scales and comparisons

• 728,428,020,201 seconds is equal to 23,161 years, 39 weeks, 2 days, 20 hours, 43 minutes, 21 seconds.
• To count from 1 to 728,428,020,201 would take you about forty-six thousand, three hundred twenty-three 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 728428020201 cubic inches would be around 749.8 feet tall.

Recreational maths with 728428020201

• 728428020201 backwards is 102020824827
• The number of decimal digits it has is: 12
• The sum of 728428020201's digits is 36
• More coming soon!