28708999740

Names of 28708999740

• Cardinal: 28708999740 can be written as Twenty-eight billion, seven hundred eight million, nine hundred ninety-nine thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.870899974 × 10¹⁰

Factors of 28708999740

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1612

Divisors of 28708999740

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 61 69 79 90 92 115 122 138 158 180 183 207 230 237 244 276 305 316 345 366 395 414 460 474 549 610 690 711 732 790 828 915 948 1035 1098 1185 1220 1380 1403 1422 1439 1580 1817 1830 2070 2196 2370 2745 2806 2844 2878 3555 3634 3660 4140 4209 4317 4740 4819 5451 5490 5612 5756 7015 7110 7195 7268 8418 8634 9085 9638 10902 10980 12627 12951 14030 14220 14390 14457 16353 16836 17268 18170 19276 21045 21585 21804 24095 25254 25902 27255 28060 28780 28914 32706 33097 36340 42090 43170 43371 48190 50508 51804 54510 57828 63135 64755 65412 66194 72285 81765 84180 86340 86742 87779 96380 99291 109020 110837 113681 126270 129510 132388 144570 163530 165485 173484 175558 198582 216855 221674 227362 252540 259020 263337 289140 297873 327060 330970 332511 341043 351116 397164 433710 438895 443348 454724 496455 526674 554185 568405 595746 661940 665022 682086 790011 867420 877790 992910 997533 1023129 1053348 1108370 1136810 1191492 1316685 1330044 1364172 1489365 1580022 1662555 1705215 1755580 1985820 1995066 2018917 2046258 2216740 2273620 2614663 2633370 2978730 3160044 3325110 3410430 3950055 3990132 4037834 4092516 4987665 5115645 5229326 5266740 5957460 6056751 6650220 6820860 6934541 7843989 7900110 8075668 9975330 10094585 10231290 10458652 12113502 13073315 13869082 15687978 15800220 18170253 19950660 20189170 20462580 20803623 23531967 24227004 26146630 27738164 30283755 31375956 34672705 36340506 39219945 40378340 41607246 47063934 52293260 60567510 62410869 69345410 72681012 78439890 83214492 90851265 94127868 104018115 117659835 121135020 124821738 138690820 156879780 159494443 181702530 208036230 235319670 249643476 312054345 318988886 363405060 416072460 470639340 478483329 624108690 637977772 797472215 956966658 1248217380 1435449987 1594944430 1913933316 2392416645 2870899974 3189888860 4784833290 5741799948 7177249935 9569666580 14354499870 28708999740
• Sum of all divisors σ(n): 93594009600
• Sum of proper divisors (its aliquot sum) s(n): 64885009860
• 28708999740 is an abundant number, because the sum of its proper divisors (64885009860) is greater than itself. Its abundance is 36176010120

Bases of 28708999740

• Binary: 11010101111001100001001001000111100₂
• Hexadecimal: 0x6AF30923C
• Base-36: D6SLHZ0

Squares and roots of 28708999740

• 28708999740 squared (28708999740²) is 824206666071320067600
• 28708999740 cubed (28708999740³) is 23662148961947794642185182424000
• The square root of 28708999740 is 169437.3032717411
• The cube root of 28708999740 is 3062.0058807749

Scales and comparisons

• 28,708,999,740 seconds is equal to 912 years, 44 weeks, 4 days, 2 hours, 9 minutes.
• To count from 1 to 28,708,999,740 would take you about one thousand, eight hundred twenty-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 28708999740 cubic inches would be around 255.2 feet tall.

Recreational maths with 28708999740

• 28708999740 backwards is 04799980782
• The number of decimal digits it has is: 11
• The sum of 28708999740's digits is 63
• More coming soon!