990805920
990,805,920 is an even composite number composed of seven prime numbers multiplied together.
990805920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 990805920:
25 × 3 × 5 × 13 × 19 × 61 × 137
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 19 × 61 × 137)See below for interesting mathematical facts about the number 990805920 from the Numbermatics database.
Names of 990805920
- Cardinal: 990805920 can be written as Nine hundred ninety million, eight hundred five thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 9.9080592 × 108
Factors of 990805920
Divisors of 990805920
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 19 20 24 26 30 32 38 39 40 48 52 57 60 61 65 76 78 80 95 96 104 114 120 122 130 137 152 156 160 183 190 195 208 228 240 244 247 260 274 285 304 305 312 366 380 390 411 416 456 480 488 494 520 548 570 608 610 624 685 732 741 760 780 793 822 912 915 976 988 1040 1096 1140 1159 1220 1235 1248 1370 1464 1482 1520 1560 1586 1644 1781 1824 1830 1952 1976 2055 2080 2192 2280 2318 2379 2440 2470 2603 2740 2928 2964 3040 3120 3172 3288 3477 3562 3660 3705 3952 3965 4110 4384 4560 4636 4758 4880 4940 5206 5343 5480 5795 5856 5928 6240 6344 6576 6954 7124 7320 7410 7809 7904 7930 8220 8357 8905 9120 9272 9516 9760 9880 10412 10686 10960 11590 11856 11895 12688 13015 13152 13908 14248 14640 14820 15067 15618 15860 16440 16714 17385 17810 18544 19032 19760 20824 21372 21920 23180 23712 23790 25071 25376 26030 26715 27816 28496 29280 29640 30134 31236 31720 32880 33428 33839 34770 35620 37088 38064 39045 39520 41648 41785 42744 45201 46360 47580 50142 52060 53430 55632 56992 59280 60268 62472 63440 65760 66856 67678 69540 71240 75335 76128 78090 83296 83570 85488 90402 92720 95160 100284 101517 104120 106860 108641 111264 118560 120536 124944 125355 126880 133712 135356 139080 142480 150670 156180 158783 167140 169195 170976 180804 185440 190320 200568 203034 208240 213720 217282 226005 241072 249888 250710 267424 270712 278160 284960 301340 312360 317566 325923 334280 338390 361608 380640 401136 406068 416480 427440 434564 452010 476349 482144 501420 507585 541424 543205 556320 602680 624720 635132 651846 668560 676780 723216 793915 802272 812136 854880 869128 904020 952698 1002840 1015170 1082848 1086410 1205360 1249440 1270264 1303692 1337120 1353560 1446432 1587830 1624272 1629615 1738256 1808040 1905396 2005680 2030340 2064179 2172820 2381745 2410720 2540528 2607384 2707120 3175660 3248544 3259230 3476512 3616080 3810792 4011360 4060680 4128358 4345640 4763490 5081056 5214768 5414240 6192537 6351320 6518460 7232160 7621584 8121360 8256716 8691280 9526980 10320895 10429536 12385074 12702640 13036920 15243168 16242720 16513432 17382560 19053960 20641790 24770148 25405280 26073840 30962685 33026864 38107920 41283580 49540296 52147680 61925370 66053728 76215840 82567160 99080592 123850740 165134320 198161184 247701480 330268640 495402960 990805920
- Sum of all divisors σ(n): 3622268160
- Sum of proper divisors (its aliquot sum) s(n): 2631462240
- 990805920 is an abundant number, because the sum of its proper divisors (2631462240) is greater than itself. Its abundance is 1640656320
Bases of 990805920
- Binary: 1110110000111001111111101000002
- Hexadecimal: 0x3B0E7FA0
- Base-36: GDWEQO
Squares and roots of 990805920
- 990805920 squared (9908059202) is 981696371107046400
- 990805920 cubed (9908059203) is 972670576135378526834688000
-
The
square root of 990805920 is 31477.0697492635 -
The
cube root of 990805920 is 996.9258660509
Scales and comparisons
How big is 990805920?- 990,805,920 seconds is equal to 31 years, 26 weeks, 1 day, 15 hours, 52 minutes.
-
To count from 1 to 990,805,920 would take you about forty-seven 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 990805920 cubic inches would be around 83.1 feet tall.
Recreational maths with 990805920
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