28987839440
28,987,839,440 is an even composite number composed of seven prime numbers multiplied together.
28987839440 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 28987839440:
24 × 5 × 72 × 19 × 37 × 67 × 157
(2 × 2 × 2 × 2 × 5 × 7 × 7 × 19 × 37 × 67 × 157)See below for interesting mathematical facts about the number 28987839440 from the Numbermatics database.
Names of 28987839440
- Cardinal: 28987839440 can be written as Twenty-eight billion, nine hundred eighty-seven million, eight hundred thirty-nine thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.898783944 × 1010
Factors of 28987839440
Divisors of 28987839440
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 35 37 38 40 49 56 67 70 74 76 80 95 98 112 133 134 140 148 152 157 185 190 196 245 259 266 268 280 296 304 314 335 370 380 392 469 490 518 532 536 560 592 628 665 670 703 740 760 784 785 931 938 980 1036 1064 1072 1099 1256 1273 1295 1330 1340 1406 1480 1520 1570 1813 1862 1876 1960 2072 2128 2198 2345 2479 2512 2546 2590 2660 2680 2812 2960 2983 3140 3283 3515 3626 3724 3752 3920 4144 4396 4655 4690 4921 4958 5092 5180 5320 5360 5495 5624 5809 5966 6280 6365 6566 7030 7252 7448 7504 7693 8792 8911 9065 9310 9380 9842 9916 10184 10360 10519 10640 10990 11248 11618 11932 12395 12560 12730 13132 14060 14504 14896 14915 15386 16415 17353 17584 17822 18130 18620 18760 19684 19832 20368 20720 20881 21038 21980 23236 23864 24605 24790 25460 26264 28120 29008 29045 29830 30772 32830 34447 34706 35644 36260 37240 37520 38465 39368 39664 40663 41762 42076 43960 44555 46472 47101 47728 49210 49580 50920 52528 52595 56240 58090 59660 61544 62377 65660 68894 69412 71288 72520 73633 74480 76930 78736 81326 83524 84152 86765 87920 89110 92944 94202 98420 99160 101840 104405 105190 110371 116180 119320 121471 123088 124754 131320 137788 138824 142576 145040 146167 147266 153860 162652 167048 168304 172235 173530 178220 188404 196840 198320 199861 203315 208810 210380 220742 232360 235505 238640 242942 249508 262640 275576 277648 284641 292334 294532 307720 311885 325304 329707 334096 344470 347060 356440 368165 376808 389203 393680 399722 406630 417620 420760 441484 464720 471010 485884 499016 515431 551152 551855 569282 584668 589064 607355 615440 623770 650608 659414 688940 694120 712880 730835 736330 753616 772597 778406 799444 813260 835240 841520 882968 942020 971768 998032 999305 1030862 1103710 1138564 1169336 1178128 1214710 1247540 1318828 1377880 1388240 1399027 1423205 1461670 1472660 1545194 1556812 1598888 1626520 1648535 1670480 1765936 1884040 1943536 1946015 1998610 2061724 2207420 2277128 2307949 2338672 2429420 2495080 2577155 2637656 2724421 2755760 2798054 2846410 2923340 2945320 3090388 3113624 3197776 3253040 3297070 3768080 3862985 3892030 3997220 4123448 4414840 4554256 4615898 4858840 4990160 5154310 5275312 5408179 5448842 5596108 5692820 5846680 5890640 6180776 6227248 6594140 6995135 7394857 7725970 7784060 7994440 8246896 8829680 9231796 9717680 9793189 10308620 10816358 10897684 11192216 11385640 11539745 11693360 12361552 13188280 13622105 13990270 14789714 15451940 15568120 15988880 18463592 19070947 19586378 20617240 21632716 21795368 22384432 22771280 23079490 26376560 27040895 27244210 27980540 29579428 30903880 31136240 36927184 36974285 38141894 39172756 41234480 43265432 43590736 46158980 48965945 51763999 54081790 54488420 55961080 59158856 61807760 73948570 76283788 78345512 86530864 92317960 95354735 97931890 103527998 108163580 108976840 111922160 118317712 147897140 152567576 156691024 184635920 190709470 195863780 207055996 216327160 217953680 258819995 295794280 305135152 362347993 381418940 391727560 414111992 432654320 517639990 591588560 724695986 762837880 783455120 828223984 1035279980 1449391972 1525675760 1811739965 2070559960 2898783944 3623479930 4141119920 5797567888 7246959860 14493919720 28987839440
- Sum of all divisors σ(n): 86569994880
- Sum of proper divisors (its aliquot sum) s(n): 57582155440
- 28987839440 is an abundant number, because the sum of its proper divisors (57582155440) is greater than itself. Its abundance is 28594316000
Bases of 28987839440
- Binary: 110101111111100111101010011110100002
- Hexadecimal: 0x6BFCF53D0
- Base-36: DBEM028
Squares and roots of 28987839440
- 28987839440 squared (289878394402) is 840294835399219513600
- 28987839440 cubed (289878394403) is 24358331770813803561551696384000
-
The
square root of 28987839440 is 170258.1552819131 -
The
cube root of 28987839440 is 3071.8873277949
Scales and comparisons
How big is 28987839440?- 28,987,839,440 seconds is equal to 921 years, 37 weeks, 4 days, 9 hours, 37 minutes, 20 seconds.
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To count from 1 to 28,987,839,440 would take you about one thousand, eight hundred forty-three 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 28987839440 cubic inches would be around 256 feet tall.
Recreational maths with 28987839440
- 28987839440 backwards is 04493878982
- The number of decimal digits it has is: 11
- The sum of 28987839440's digits is 62
- More coming soon!
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