855728640
855,728,640 is an even composite number composed of five prime numbers multiplied together.
855728640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 855728640:
29 × 32 × 5 × 13 × 2857
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 2857)See below for interesting mathematical facts about the number 855728640 from the Numbermatics database.
Names of 855728640
- Cardinal: 855728640 can be written as Eight hundred fifty-five million, seven hundred twenty-eight thousand, six hundred forty.
Scientific notation
- Scientific notation: 8.5572864 × 108
Factors of 855728640
Divisors of 855728640
- Number of divisors d(n): 240
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 64 65 72 78 80 90 96 104 117 120 128 130 144 156 160 180 192 195 208 234 240 256 260 288 312 320 360 384 390 416 468 480 512 520 576 585 624 640 720 768 780 832 936 960 1040 1152 1170 1248 1280 1440 1536 1560 1664 1872 1920 2080 2304 2340 2496 2560 2857 2880 3120 3328 3744 3840 4160 4608 4680 4992 5714 5760 6240 6656 7488 7680 8320 8571 9360 9984 11428 11520 12480 14285 14976 16640 17142 18720 19968 22856 23040 24960 25713 28570 29952 33280 34284 37141 37440 42855 45712 49920 51426 57140 59904 68568 74282 74880 85710 91424 99840 102852 111423 114280 128565 137136 148564 149760 171420 182848 185705 205704 222846 228560 257130 274272 297128 299520 334269 342840 365696 371410 411408 445692 457120 514260 548544 557115 594256 668538 685680 731392 742820 822816 891384 914240 1028520 1097088 1114230 1188512 1337076 1371360 1462784 1485640 1645632 1671345 1782768 1828480 2057040 2194176 2228460 2377024 2674152 2742720 2971280 3291264 3342690 3565536 3656960 4114080 4388352 4456920 4754048 5348304 5485440 5942560 6582528 6685380 7131072 7313920 8228160 8913840 9508096 10696608 10970880 11885120 13165056 13370760 14262144 16456320 17827680 19016192 21393216 21941760 23770240 26741520 28524288 32912640 35655360 42786432 47540480 53483040 57048576 65825280 71310720 85572864 95080960 106966080 142621440 171145728 213932160 285242880 427864320 855728640
- Sum of all divisors σ(n): 3192717528
- Sum of proper divisors (its aliquot sum) s(n): 2336988888
- 855728640 is an abundant number, because the sum of its proper divisors (2336988888) is greater than itself. Its abundance is 1481260248
Bases of 855728640
- Binary: 1100110000000101100010000000002
- Hexadecimal: 0x33016200
- Base-36: E5H8G0
Squares and roots of 855728640
- 855728640 squared (8557286402) is 732271505316249600
- 855728640 cubed (8557286403) is 626625699355027040108544000
-
The
square root of 855728640 is 29252.8398621399 -
The
cube root of 855728640 is 949.3915365009
Scales and comparisons
How big is 855728640?- 855,728,640 seconds is equal to 27 years, 10 weeks, 6 days, 6 hours, 24 minutes.
-
To count from 1 to 855,728,640 would take you about forty 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 855728640 cubic inches would be around 79.1 feet tall.
Recreational maths with 855728640
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