28090189728

Names of 28090189728

• Cardinal: 28090189728 can be written as Twenty-eight billion, ninety million, one hundred eighty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8090189728 × 10¹⁰

Factors of 28090189728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 12284

Divisors of 28090189728

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 72 87 96 116 144 174 232 261 281 288 348 464 522 562 696 843 928 1044 1124 1392 1686 2088 2248 2529 2784 3372 4176 4496 5058 6744 8149 8352 8992 10116 11969 13488 16298 20232 23938 24447 26976 32596 35907 40464 47876 48894 65192 71814 73341 80928 95752 97788 107721 130384 143628 146682 191504 195576 215442 260768 287256 293364 347101 383008 391152 430884 574512 586728 694202 782304 861768 1041303 1149024 1173456 1388404 1723536 2082606 2346912 2776808 3123909 3363289 3447072 4165212 5553616 6247818 6726578 8330424 10089867 11107232 12495636 13453156 16660848 20179734 24991272 26906312 30269601 33321696 40359468 49982544 53812624 60539202 80718936 97535381 99965088 107625248 121078404 161437872 195070762 242156808 292606143 322875744 390141524 484313616 585212286 780283048 877818429 968627232 1170424572 1560566096 1755636858 2340849144 3121132192 3511273716 4681698288 7022547432 9363396576 14045094864 28090189728
• Sum of all divisors σ(n): 82937017800
• Sum of proper divisors (its aliquot sum) s(n): 54846828072
• 28090189728 is an abundant number, because the sum of its proper divisors (54846828072) is greater than itself. Its abundance is 26756638344

Bases of 28090189728

• Binary: 11010001010010011100100011110100000₂
• Hexadecimal: 0x68A4E47A0
• Base-36: CWK6940

Squares and roots of 28090189728

• 28090189728 squared (28090189728²) is 789058758955036713984
• 28090189728 cubed (28090189728³) is 22164810245587200317016230756352
• The square root of 28090189728 is 167601.2819998701
• The cube root of 28090189728 is 3039.8458243601

Scales and comparisons

• 28,090,189,728 seconds is equal to 893 years, 9 weeks, 2 days, 22 hours, 28 minutes, 48 seconds.
• To count from 1 to 28,090,189,728 would take you about one thousand, seven hundred eighty-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 28090189728 cubic inches would be around 253.3 feet tall.

Recreational maths with 28090189728

• 28090189728 backwards is 82798109082
• The number of decimal digits it has is: 11
• The sum of 28090189728's digits is 54
• More coming soon!