55781320
55,781,320 is an even composite number composed of six prime numbers multiplied together.
55781320 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 55781320:
23 × 5 × 7 × 41 × 43 × 113
(2 × 2 × 2 × 5 × 7 × 41 × 43 × 113)See below for interesting mathematical facts about the number 55781320 from the Numbermatics database.
Names of 55781320
- Cardinal: 55781320 can be written as Fifty-five million, seven hundred eighty-one thousand, three hundred twenty.
Scientific notation
- Scientific notation: 5.578132 × 107
Factors of 55781320
Divisors of 55781320
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 35 40 41 43 56 70 82 86 113 140 164 172 205 215 226 280 287 301 328 344 410 430 452 565 574 602 791 820 860 904 1130 1148 1204 1435 1505 1582 1640 1720 1763 2260 2296 2408 2870 3010 3164 3526 3955 4520 4633 4859 5740 6020 6328 7052 7910 8815 9266 9718 11480 12040 12341 14104 15820 17630 18532 19436 23165 24295 24682 31640 32431 34013 35260 37064 38872 46330 48590 49364 61705 64862 68026 70520 92660 97180 98728 123410 129724 136052 162155 170065 185320 194360 199219 246820 259448 272104 324310 340130 398438 493640 648620 680260 796876 996095 1297240 1360520 1394533 1593752 1992190 2789066 3984380 5578132 6972665 7968760 11156264 13945330 27890660 55781320
- Sum of all divisors σ(n): 151683840
- Sum of proper divisors (its aliquot sum) s(n): 95902520
- 55781320 is an abundant number, because the sum of its proper divisors (95902520) is greater than itself. Its abundance is 40121200
Bases of 55781320
- Binary: 110101001100100111110010002
- Hexadecimal: 0x35327C8
- Base-36: X7L54
Squares and roots of 55781320
- 55781320 squared (557813202) is 3111555660942400
- 55781320 cubed (557813203) is 173566682020839515968000
-
The
square root of 55781320 is 7468.6893093769 -
The
cube root of 55781320 is 382.0875871635
Scales and comparisons
How big is 55781320?- 55,781,320 seconds is equal to 1 year, 40 weeks, 1 day, 14 hours, 48 minutes, 40 seconds.
-
To count from 1 to 55,781,320 would take you about two 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 55781320 cubic inches would be around 31.8 feet tall.
Recreational maths with 55781320
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