28139760

Names of 28139760

• Cardinal: 28139760 can be written as Twenty-eight million, one hundred thirty-nine thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 2.813976 × 10⁷

Factors of 28139760

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 57

Divisors of 28139760

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 17 18 19 20 22 24 30 33 34 36 38 40 44 45 48 51 55 57 60 66 68 72 76 80 85 88 90 95 99 102 110 114 120 121 132 136 144 152 153 165 170 171 176 180 187 190 198 204 209 220 228 240 242 255 264 272 285 304 306 323 330 340 342 360 363 374 380 396 408 418 440 456 484 495 510 528 561 570 605 612 627 646 660 680 684 720 726 748 760 765 792 816 836 855 880 912 935 968 969 990 1020 1045 1089 1122 1140 1210 1224 1254 1292 1320 1360 1368 1452 1496 1520 1530 1584 1615 1672 1683 1710 1815 1870 1881 1936 1938 1980 2040 2057 2090 2178 2244 2280 2299 2420 2448 2508 2584 2640 2736 2805 2904 2907 2992 3060 3135 3230 3344 3366 3420 3553 3630 3740 3762 3876 3960 4080 4114 4180 4356 4488 4560 4598 4840 4845 5016 5168 5445 5610 5808 5814 6120 6171 6270 6460 6732 6840 6897 7106 7260 7480 7524 7752 7920 8228 8360 8415 8712 8976 9196 9405 9680 9690 10032 10285 10659 10890 11220 11495 11628 12240 12342 12540 12920 13464 13680 13794 14212 14520 14535 14960 15048 15504 16456 16720 16830 17424 17765 18392 18513 18810 19380 20570 20691 21318 21780 22440 22990 23256 24684 25080 25840 26928 27588 28424 29040 29070 30096 30855 31977 32912 33660 34485 35530 36784 37026 37620 38760 39083 41140 41382 42636 43560 44880 45980 46512 49368 50160 53295 55176 56848 58140 61710 63954 67320 68970 71060 74052 75240 77520 78166 82280 82764 85272 87120 91960 92565 98736 103455 106590 110352 116280 117249 123420 127908 134640 137940 142120 148104 150480 156332 159885 164560 165528 170544 183920 185130 195415 206910 213180 232560 234498 246840 255816 275880 284240 296208 312664 319770 331056 351747 370260 390830 413820 426360 468996 493680 511632 551760 586245 625328 639540 703494 740520 781660 827640 852720 937992 1172490 1279080 1406988 1481040 1563320 1655280 1758735 1875984 2344980 2558160 2813976 3126640 3517470 4689960 5627952 7034940 9379920 14069880 28139760
• Sum of all divisors σ(n): 115773840
• Sum of proper divisors (its aliquot sum) s(n): 87634080
• 28139760 is an abundant number, because the sum of its proper divisors (87634080) is greater than itself. Its abundance is 59494320

Bases of 28139760

• Binary: 1101011010110000011110000₂
• Hexadecimal: 0x1AD60F0
• Base-36: GR4S0

Squares and roots of 28139760

• 28139760 squared (28139760²) is 791846092857600
• 28139760 cubed (28139760³) is 22282359009950578176000
• The square root of 28139760 is 5304.6922625163
• The cube root of 28139760 is 304.1632894685

Scales and comparisons

• 28,139,760 seconds is equal to 46 weeks, 3 days, 16 hours, 36 minutes.
• To count from 1 to 28,139,760 would take you about seventeen weeks!

  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 28139760 cubic inches would be around 25.3 feet tall.

Recreational maths with 28139760

• 28139760 backwards is 06793182
• 28139760 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28139760's digits is 36
• More coming soon!