85409940
85,409,940 is an even composite number composed of seven prime numbers multiplied together.
85409940 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 85409940:
22 × 3 × 5 × 72 × 11 × 19 × 139
(2 × 2 × 3 × 5 × 7 × 7 × 11 × 19 × 139)See below for interesting mathematical facts about the number 85409940 from the Numbermatics database.
Names of 85409940
- Cardinal: 85409940 can be written as Eighty-five million, four hundred nine thousand, nine hundred forty.
Scientific notation
- Scientific notation: 8.540994 × 107
Factors of 85409940
Divisors of 85409940
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 10 11 12 14 15 19 20 21 22 28 30 33 35 38 42 44 49 55 57 60 66 70 76 77 84 95 98 105 110 114 132 133 139 140 147 154 165 190 196 209 210 220 228 231 245 266 278 285 294 308 330 380 385 399 417 418 420 462 490 532 539 556 570 588 627 660 665 695 735 770 798 834 836 924 931 973 980 1045 1078 1140 1155 1254 1330 1390 1463 1470 1529 1540 1596 1617 1668 1862 1946 1995 2085 2090 2156 2310 2508 2641 2660 2695 2780 2793 2919 2926 2940 3058 3135 3234 3724 3892 3990 4170 4180 4389 4587 4620 4655 4865 5282 5390 5586 5838 5852 6116 6270 6468 6811 7315 7645 7923 7980 8085 8340 8778 9174 9310 9730 10241 10564 10703 10780 11172 11676 12540 13205 13622 13965 14595 14630 15290 15846 16170 17556 18348 18487 18620 19460 20433 20482 21406 21945 22935 26410 27244 27930 29051 29190 29260 30580 30723 31692 32109 32340 34055 36974 39615 40866 40964 42812 43890 45870 51205 52820 53515 55461 55860 58102 58380 61446 64218 68110 73948 74921 79230 81732 87153 87780 91740 92435 102165 102410 107030 110922 116204 122892 128436 129409 136220 145255 149842 153615 158460 160545 174306 184870 203357 204330 204820 214060 221844 224763 258818 277305 290510 299684 307230 321090 348612 369740 374605 388227 406714 408660 435765 449526 517636 554610 581020 610071 614460 642180 647045 749210 776454 813428 871530 899052 1016785 1109220 1123815 1220142 1294090 1423499 1498420 1552908 1743060 1941135 2033570 2247630 2440284 2588180 2846998 3050355 3882270 4067140 4270497 4495260 5693996 6100710 7117495 7764540 8540994 12201420 14234990 17081988 21352485 28469980 42704970 85409940
- Sum of all divisors σ(n): 321753600
- Sum of proper divisors (its aliquot sum) s(n): 236343660
- 85409940 is an abundant number, because the sum of its proper divisors (236343660) is greater than itself. Its abundance is 150933720
Bases of 85409940
- Binary: 1010001011101000000100101002
- Hexadecimal: 0x5174094
- Base-36: 1EUMQC
Squares and roots of 85409940
- 85409940 squared (854099402) is 7294857850803600
- 85409940 cubed (854099403) is 623053371345664427784000
-
The
square root of 85409940 is 9241.7498343117 -
The
cube root of 85409940 is 440.3886717193
Scales and comparisons
How big is 85409940?- 85,409,940 seconds is equal to 2 years, 37 weeks, 1 day, 12 hours, 59 minutes.
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To count from 1 to 85,409,940 would take you about four 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 85409940 cubic inches would be around 36.7 feet tall.
Recreational maths with 85409940
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