28508137920

Names of 28508137920

• Cardinal: 28508137920 can be written as Twenty-eight billion, five hundred eight million, one hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.850813792 × 10¹⁰

Factors of 28508137920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2068

Divisors of 28508137920

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 135 144 160 162 180 192 197 216 240 243 270 288 320 324 360 394 405 432 480 486 540 576 591 648 720 788 810 864 960 972 985 1080 1182 1215 1296 1440 1576 1620 1728 1773 1861 1944 1970 2160 2364 2430 2592 2880 2955 3152 3240 3546 3722 3888 3940 4320 4728 4860 5184 5319 5583 5910 6304 6480 7092 7444 7776 7880 8640 8865 9305 9456 9720 10638 11166 11820 12608 12960 14184 14888 15552 15760 15957 16749 17730 18610 18912 19440 21276 22332 23640 25920 26595 27915 28368 29776 31520 31914 33498 35460 37220 37824 38880 42552 44664 47280 47871 50247 53190 55830 56736 59552 63040 63828 66996 70920 74440 77760 79785 83745 85104 89328 94560 95742 100494 106380 111660 113472 119104 127656 133992 141840 148880 150741 159570 167490 170208 178656 189120 191484 200988 212760 223320 239355 251235 255312 267984 283680 297760 301482 319140 334980 340416 357312 366617 382968 401976 425520 446640 452223 478710 502470 510624 535968 567360 595520 602964 638280 669960 733234 753705 765936 803952 851040 893280 904446 957420 1004940 1021248 1071936 1099851 1205928 1276560 1339920 1466468 1507410 1531872 1607904 1702080 1786560 1808892 1833085 1914840 2009880 2199702 2261115 2411856 2553120 2679840 2932936 3014820 3063744 3215808 3299553 3617784 3666170 3829680 4019760 4399404 4522230 4823712 5106240 5359680 5499255 5865872 6029640 6599106 7235568 7332340 7659360 8039520 8798808 9044460 9647424 9898659 10998510 11731744 12059280 13198212 14471136 14664680 15318720 16079040 16497765 17597616 18088920 19797318 21997020 23463488 24118560 26396424 28942272 29329360 29695977 32995530 35195232 36177840 39594636 43994040 48237120 49493295 52792848 58658720 59391954 65991060 70390464 72355680 79189272 87988080 89087931 98986590 105585696 117317440 118783908 131982120 144711360 148479885 158378544 175976160 178175862 197973180 211171392 237567816 263964240 296959770 316757088 351952320 356351724 395946360 445439655 475135632 527928480 593919540 633514176 712703448 791892720 890879310 950271264 1055856960 1187839080 1425406896 1583785440 1781758620 1900542528 2375678160 2850813792 3167570880 3563517240 4751356320 5701627584 7127034480 9502712640 14254068960 28508137920
• Sum of all divisors σ(n): 102258924768
• Sum of proper divisors (its aliquot sum) s(n): 73750786848
• 28508137920 is an abundant number, because the sum of its proper divisors (73750786848) is greater than itself. Its abundance is 45242648928

Bases of 28508137920

• Binary: 11010100011001101111010100111000000₂
• Hexadecimal: 0x6A337A9C0
• Base-36: D3H0C00

Squares and roots of 28508137920

• 28508137920 squared (28508137920²) is 812713927665741926400
• 28508137920 cubed (28508137920³) is 23168960739399874496937689088000
• The square root of 28508137920 is 168843.5308799245
• The cube root of 28508137920 is 3054.8480783195

Scales and comparisons

• 28,508,137,920 seconds is equal to 906 years, 24 weeks, 3 days, 7 hours, 12 minutes.
• To count from 1 to 28,508,137,920 would take you about one thousand, eight hundred twelve 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 28508137920 cubic inches would be around 254.6 feet tall.

Recreational maths with 28508137920

• 28508137920 backwards is 02973180582
• 28508137920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28508137920's digits is 45
• More coming soon!