28390019840

Names of 28390019840

• Cardinal: 28390019840 can be written as Twenty-eight billion, three hundred ninety million, nineteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.839001984 × 10¹⁰

Factors of 28390019840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 34846

Divisors of 28390019840

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 49 52 56 64 65 70 80 91 98 104 112 128 130 140 160 182 196 208 224 245 256 260 280 320 364 392 416 448 455 490 520 560 637 640 728 784 832 896 910 980 1040 1120 1274 1280 1456 1568 1664 1792 1820 1960 2080 2240 2548 2912 3136 3185 3328 3640 3920 4160 4480 5096 5824 6272 6370 7280 7840 8320 8960 10192 11648 12544 12740 14560 15680 16640 20384 23296 25480 29120 31360 34819 40768 50960 58240 62720 69638 81536 101920 116480 139276 163072 174095 203840 243733 278552 348190 407680 452647 487466 557104 696380 815360 905294 974932 1114208 1218665 1392760 1706131 1810588 1949864 2228416 2263235 2437330 2785520 3168529 3412262 3621176 3899728 4456832 4526470 4874660 5571040 6337058 6824524 7242352 7799456 8530655 8913664 9052940 9749320 11142080 12674116 13649048 14484704 15598912 15842645 17061310 18105880 19498640 22179703 22284160 25348232 27298096 28969408 31197824 31685290 34122620 36211760 38997280 44359406 44568320 50696464 54596192 57938816 62395648 63370580 68245240 72423520 77994560 88718812 101392928 109192384 110898515 115877632 126741160 136490480 144847040 155989120 177437624 202785856 218384768 221797030 253482320 272980960 289694080 311978240 354875248 405571712 436769536 443594060 506964640 545961920 579388160 709750496 811143424 887188120 1013929280 1091923840 1419500992 1774376240 2027858560 2183847680 2839001984 3548752480 4055717120 5678003968 7097504960 14195009920 28390019840
• Sum of all divisors σ(n): 85192979760
• Sum of proper divisors (its aliquot sum) s(n): 56802959920
• 28390019840 is an abundant number, because the sum of its proper divisors (56802959920) is greater than itself. Its abundance is 28412940080

Bases of 28390019840

• Binary: 11010011100001011010101001100000000₂
• Hexadecimal: 0x69C2D5300
• Base-36: D1IONI8

Squares and roots of 28390019840

• 28390019840 squared (28390019840²) is 805993226515593625600
• 28390019840 cubed (28390019840³) is 22882163691683317100161531904000
• The square root of 28390019840 is 168493.3821845831
• The cube root of 28390019840 is 3050.6231760771

Scales and comparisons

• 28,390,019,840 seconds is equal to 902 years, 37 weeks, 1 day, 4 hours, 37 minutes, 20 seconds.
• To count from 1 to 28,390,019,840 would take you about one thousand, eight hundred five 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 28390019840 cubic inches would be around 254.2 feet tall.

Recreational maths with 28390019840

• 28390019840 backwards is 04891009382
• The number of decimal digits it has is: 11
• The sum of 28390019840's digits is 44
• More coming soon!