399145120
399,145,120 is an even composite number composed of five prime numbers multiplied together.
399145120 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 399145120:
25 × 5 × 112 × 53 × 389
(2 × 2 × 2 × 2 × 2 × 5 × 11 × 11 × 53 × 389)See below for interesting mathematical facts about the number 399145120 from the Numbermatics database.
Names of 399145120
- Cardinal: 399145120 can be written as Three hundred ninety-nine million, one hundred forty-five thousand, one hundred twenty.
Scientific notation
- Scientific notation: 3.9914512 × 108
Factors of 399145120
Divisors of 399145120
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 32 40 44 53 55 80 88 106 110 121 160 176 212 220 242 265 352 389 424 440 484 530 583 605 778 848 880 968 1060 1166 1210 1556 1696 1760 1936 1945 2120 2332 2420 2915 3112 3872 3890 4240 4279 4664 4840 5830 6224 6413 7780 8480 8558 9328 9680 11660 12448 12826 15560 17116 18656 19360 20617 21395 23320 25652 31120 32065 34232 41234 42790 46640 47069 51304 62240 64130 68464 82468 85580 93280 94138 102608 103085 128260 136928 164936 171160 188276 205216 206170 226787 235345 256520 329872 342320 376552 412340 453574 470690 513040 659744 684640 753104 824680 907148 941380 1026080 1133935 1506208 1649360 1814296 1882760 2267870 2494657 3298720 3628592 3765520 4535740 4989314 7257184 7531040 9071480 9978628 12473285 18142960 19957256 24946570 36285920 39914512 49893140 79829024 99786280 199572560 399145120
- Sum of all divisors σ(n): 1058770440
- Sum of proper divisors (its aliquot sum) s(n): 659625320
- 399145120 is an abundant number, because the sum of its proper divisors (659625320) is greater than itself. Its abundance is 260480200
Bases of 399145120
- Binary: 101111100101001111000101000002
- Hexadecimal: 0x17CA78A0
- Base-36: 6LN2CG
Squares and roots of 399145120
- 399145120 squared (3991451202) is 159316826819814400
- 399145120 cubed (3991451203) is 63590533959014037065728000
-
The
square root of 399145120 is 19978.6165687219 -
The
cube root of 399145120 is 736.2810245363
Scales and comparisons
How big is 399145120?- 399,145,120 seconds is equal to 12 years, 35 weeks, 6 days, 17 hours, 38 minutes, 40 seconds.
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To count from 1 to 399,145,120 would take you about nineteen 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 399145120 cubic inches would be around 61.4 feet tall.
Recreational maths with 399145120
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