28137928720
28,137,928,720 is an even composite number composed of seven prime numbers multiplied together.
What does the number 28137928720 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 320 divisors.
28137928720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 28137928720:
24 × 5 × 11 × 31 × 37 × 61 × 457
(2 × 2 × 2 × 2 × 5 × 11 × 31 × 37 × 61 × 457)See below for interesting mathematical facts about the number 28137928720 from the Numbermatics database.
Names of 28137928720
- Cardinal: 28137928720 can be written as Twenty-eight billion, one hundred thirty-seven million, nine hundred twenty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.813792872 × 1010
Factors of 28137928720
Divisors of 28137928720
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 31 37 40 44 55 61 62 74 80 88 110 122 124 148 155 176 185 220 244 248 296 305 310 341 370 407 440 457 488 496 592 610 620 671 682 740 814 880 914 976 1147 1220 1240 1342 1364 1480 1628 1705 1828 1891 2035 2257 2285 2294 2440 2480 2684 2728 2960 3256 3355 3410 3656 3782 4070 4514 4570 4588 4880 5027 5368 5456 5735 6512 6710 6820 7312 7564 8140 9028 9140 9176 9455 10054 10736 11285 11470 12617 13420 13640 14167 15128 16280 16909 18056 18280 18352 18910 20108 20801 22570 22940 24827 25135 25234 26840 27280 27877 28334 30256 32560 33818 36112 36560 37820 40216 41602 45140 45880 49654 50270 50468 53680 55754 56668 63085 67636 69967 70835 75640 80432 83204 84545 90280 91760 99308 100540 100936 104005 111508 113336 124135 126170 135272 139385 139934 141670 151280 155837 166408 169090 180560 185999 198616 201080 201872 208010 223016 226672 248270 252340 270544 278770 279868 283340 306647 311674 332816 338180 349835 371998 397232 402160 416020 446032 496540 504680 524179 557540 559736 566680 613294 623348 676360 699670 743996 769637 779185 832040 864187 929995 993080 1009360 1031449 1048358 1115080 1119472 1133360 1226588 1246696 1352720 1399340 1487992 1533235 1539274 1558370 1664080 1728374 1859990 1986160 2062898 2096716 2230160 2453176 2493392 2620895 2798680 2975984 3066470 3078548 3116740 3456748 3719980 3848185 4125796 4193432 4320935 4906352 5157245 5241790 5597360 5765969 6132940 6157096 6233480 6913496 7439960 7696370 8251592 8386864 8641870 9506057 10314490 10483580 11345939 11531938 12265880 12314192 12466960 13826992 14879920 15392740 16503184 17283740 19012114 20628980 20967160 22691878 23063876 24531760 28829845 30785480 31974919 34567480 38024228 41257960 41934320 45383756 46127752 47530285 56729695 57659690 61570960 63949838 69134960 76048456 82515920 90767512 92255504 95060570 113459390 115319380 127899676 152096912 159874595 181535024 190121140 226918780 230638760 255799352 319749190 351724109 380242280 453837560 461277520 511598704 639498380 703448218 760484560 907675120 1278996760 1406896436 1758620545 2557993520 2813792872 3517241090 5627585744 7034482180 14068964360 28137928720
- Sum of all divisors σ(n): 77069924352
- Sum of proper divisors (its aliquot sum) s(n): 48931995632
- 28137928720 is an abundant number, because the sum of its proper divisors (48931995632) is greater than itself. Its abundance is 20794066912
Bases of 28137928720
- Binary: 110100011010010011010111000000100002
- Hexadecimal: 0x68D26B810
- Base-36: CXCLGR4
Squares and roots of 28137928720
- 28137928720 squared (281379287202) is 791743032651800838400
- 28137928720 cubed (281379287203) is 22278009017313004570535438848000
-
The
square root of 28137928720 is 167743.6398794303 -
The
cube root of 28137928720 is 3041.5669121005
Scales and comparisons
How big is 28137928720?- 28,137,928,720 seconds is equal to 894 years, 36 weeks, 2 days, 11 hours, 18 minutes, 40 seconds.
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To count from 1 to 28,137,928,720 would take you about one thousand, seven hundred eighty-nine 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 28137928720 cubic inches would be around 253.5 feet tall.
Recreational maths with 28137928720
- 28137928720 backwards is 02782973182
- The number of decimal digits it has is: 11
- The sum of 28137928720's digits is 49
- More coming soon!
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