12456990
12,456,990 is an even composite number composed of five prime numbers multiplied together.
12456990 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 12456990:
2 × 34 × 5 × 7 × 133
(2 × 3 × 3 × 3 × 3 × 5 × 7 × 13 × 13 × 13)See below for interesting mathematical facts about the number 12456990 from the Numbermatics database.
Names of 12456990
- Cardinal: 12456990 can be written as Twelve million, four hundred fifty-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.245699 × 107
Factors of 12456990
Divisors of 12456990
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 5 6 7 9 10 13 14 15 18 21 26 27 30 35 39 42 45 54 63 65 70 78 81 90 91 105 117 126 130 135 162 169 182 189 195 210 234 270 273 315 338 351 378 390 405 455 507 546 567 585 630 702 810 819 845 910 945 1014 1053 1134 1170 1183 1365 1521 1638 1690 1755 1890 2106 2197 2366 2457 2535 2730 2835 3042 3510 3549 4095 4394 4563 4914 5070 5265 5670 5915 6591 7098 7371 7605 8190 9126 10530 10647 10985 11830 12285 13182 13689 14742 15210 15379 17745 19773 21294 21970 22815 24570 27378 30758 31941 32955 35490 36855 39546 45630 46137 53235 59319 63882 65910 68445 73710 76895 92274 95823 98865 106470 118638 136890 138411 153790 159705 177957 191646 197730 230685 276822 296595 319410 355914 415233 461370 479115 593190 692055 830466 889785 958230 1245699 1384110 1779570 2076165 2491398 4152330 6228495 12456990
- Sum of all divisors σ(n): 41469120
- Sum of proper divisors (its aliquot sum) s(n): 29012130
- 12456990 is an abundant number, because the sum of its proper divisors (29012130) is greater than itself. Its abundance is 16555140
Bases of 12456990
- Binary: 1011111000010100000111102
- Hexadecimal: 0xBE141E
- Base-36: 7EZVI
Squares and roots of 12456990
- 12456990 squared (124569902) is 155176599860100
- 12456990 cubed (124569903) is 1933033352691267099000
-
The
square root of 12456990 is 3529.4461321857 -
The
cube root of 12456990 is 231.8129561577
Scales and comparisons
How big is 12456990?- 12,456,990 seconds is equal to 20 weeks, 4 days, 4 hours, 16 minutes, 30 seconds.
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To count from 1 to 12,456,990 would take you about thirty weeks!
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 12456990 cubic inches would be around 19.3 feet tall.
Recreational maths with 12456990
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