72990720
72,990,720 is an even composite number composed of four prime numbers multiplied together.
72990720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of three hundred divisors.
Prime factorization of 72990720:
214 × 34 × 5 × 11
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 11)See below for interesting mathematical facts about the number 72990720 from the Numbermatics database.
Names of 72990720
- Cardinal: 72990720 can be written as Seventy-two million, nine hundred ninety thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 7.299072 × 107
Factors of 72990720
Divisors of 72990720
- Number of divisors d(n): 300
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 81 88 90 96 99 108 110 120 128 132 135 144 160 162 165 176 180 192 198 216 220 240 256 264 270 288 297 320 324 330 352 360 384 396 405 432 440 480 495 512 528 540 576 594 640 648 660 704 720 768 792 810 864 880 891 960 990 1024 1056 1080 1152 1188 1280 1296 1320 1408 1440 1485 1536 1584 1620 1728 1760 1782 1920 1980 2048 2112 2160 2304 2376 2560 2592 2640 2816 2880 2970 3072 3168 3240 3456 3520 3564 3840 3960 4096 4224 4320 4455 4608 4752 5120 5184 5280 5632 5760 5940 6144 6336 6480 6912 7040 7128 7680 7920 8192 8448 8640 8910 9216 9504 10240 10368 10560 11264 11520 11880 12288 12672 12960 13824 14080 14256 15360 15840 16384 16896 17280 17820 18432 19008 20480 20736 21120 22528 23040 23760 24576 25344 25920 27648 28160 28512 30720 31680 33792 34560 35640 36864 38016 40960 41472 42240 45056 46080 47520 49152 50688 51840 55296 56320 57024 61440 63360 67584 69120 71280 73728 76032 81920 82944 84480 90112 92160 95040 101376 103680 110592 112640 114048 122880 126720 135168 138240 142560 147456 152064 165888 168960 180224 184320 190080 202752 207360 221184 225280 228096 245760 253440 270336 276480 285120 304128 331776 337920 368640 380160 405504 414720 442368 450560 456192 506880 540672 552960 570240 608256 663552 675840 737280 760320 811008 829440 901120 912384 1013760 1105920 1140480 1216512 1327104 1351680 1520640 1622016 1658880 1824768 2027520 2211840 2280960 2433024 2703360 3041280 3317760 3649536 4055040 4561920 4866048 6082560 6635520 7299072 8110080 9123840 12165120 14598144 18247680 24330240 36495360 72990720
- Sum of all divisors σ(n): 285466104
- Sum of proper divisors (its aliquot sum) s(n): 212475384
- 72990720 is an abundant number, because the sum of its proper divisors (212475384) is greater than itself. Its abundance is 139484664
Bases of 72990720
- Binary: 1000101100111000000000000002
- Hexadecimal: 0x459C000
- Base-36: 17GG00
Squares and roots of 72990720
- 72990720 squared (729907202) is 5327645206118400
- 72990720 cubed (729907203) is 388868659499130421248000
-
The
square root of 72990720 is 8543.4606571341 -
The
cube root of 72990720 is 417.9162091765
Scales and comparisons
How big is 72990720?- 72,990,720 seconds is equal to 2 years, 16 weeks, 4 days, 19 hours, 12 minutes.
-
To count from 1 to 72,990,720 would take you about 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 72990720 cubic inches would be around 34.8 feet tall.
Recreational maths with 72990720
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