668953728
668,953,728 is an even composite number composed of four prime numbers multiplied together.
668953728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred twenty-four divisors.
Prime factorization of 668953728:
27 × 36 × 67 × 107
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 67 × 107)See below for interesting mathematical facts about the number 668953728 from the Numbermatics database.
Names of 668953728
- Cardinal: 668953728 can be written as Six hundred sixty-eight million, nine hundred fifty-three thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 6.68953728 × 108
Factors of 668953728
Divisors of 668953728
- Number of divisors d(n): 224
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 67 72 81 96 107 108 128 134 144 162 192 201 214 216 243 268 288 321 324 384 402 428 432 486 536 576 603 642 648 729 804 856 864 963 972 1072 1152 1206 1284 1296 1458 1608 1712 1728 1809 1926 1944 2144 2412 2568 2592 2889 2916 3216 3424 3456 3618 3852 3888 4288 4824 5136 5184 5427 5778 5832 6432 6848 7169 7236 7704 7776 8576 8667 9648 10272 10368 10854 11556 11664 12864 13696 14338 14472 15408 15552 16281 17334 19296 20544 21507 21708 23112 23328 25728 26001 28676 28944 30816 31104 32562 34668 38592 41088 43014 43416 46224 46656 48843 52002 57352 57888 61632 64521 65124 69336 77184 78003 86028 86832 92448 93312 97686 104004 114704 115776 123264 129042 130248 138672 156006 172056 173664 184896 193563 195372 208008 229408 231552 258084 260496 277344 312012 344112 347328 369792 387126 390744 416016 458816 516168 520992 554688 580689 624024 688224 694656 774252 781488 832032 917632 1032336 1041984 1109376 1161378 1248048 1376448 1548504 1562976 1664064 1742067 2064672 2083968 2322756 2496096 2752896 3097008 3125952 3328128 3484134 4129344 4645512 4992192 5226201 6194016 6251904 6968268 8258688 9291024 9984384 10452402 12388032 13936536 18582048 20904804 24776064 27873072 37164096 41809608 55746144 74328192 83619216 111492288 167238432 222984576 334476864 668953728
- Sum of all divisors σ(n): 2046882960
- Sum of proper divisors (its aliquot sum) s(n): 1377929232
- 668953728 is an abundant number, because the sum of its proper divisors (1377929232) is greater than itself. Its abundance is 708975504
Bases of 668953728
- Binary: 1001111101111101101100100000002
- Hexadecimal: 0x27DF6C80
- Base-36: B2A000
Squares and roots of 668953728
- 668953728 squared (6689537282) is 447499090205097984
- 668953728 cubed (6689537283) is 299356184669308581002084352
-
The
square root of 668953728 is 25864.1398078497 -
The
cube root of 668953728 is 874.5782906111
Scales and comparisons
How big is 668953728?- 668,953,728 seconds is equal to 21 years, 14 weeks, 12 hours, 28 minutes, 48 seconds.
-
To count from 1 to 668,953,728 would take you about thirty-one 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 668953728 cubic inches would be around 72.9 feet tall.
Recreational maths with 668953728
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