389528920
389,528,920 is an even composite number composed of six prime numbers multiplied together.
389528920 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 389528920:
23 × 5 × 11 × 23 × 61 × 631
(2 × 2 × 2 × 5 × 11 × 23 × 61 × 631)See below for interesting mathematical facts about the number 389528920 from the Numbermatics database.
Names of 389528920
- Cardinal: 389528920 can be written as Three hundred eighty-nine million, five hundred twenty-eight thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 3.8952892 × 108
Factors of 389528920
Divisors of 389528920
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 4 5 8 10 11 20 22 23 40 44 46 55 61 88 92 110 115 122 184 220 230 244 253 305 440 460 488 506 610 631 671 920 1012 1220 1262 1265 1342 1403 2024 2440 2524 2530 2684 2806 3155 3355 5048 5060 5368 5612 6310 6710 6941 7015 10120 11224 12620 13420 13882 14030 14513 15433 25240 26840 27764 28060 29026 30866 34705 38491 55528 56120 58052 61732 69410 72565 76982 77165 116104 123464 138820 145130 153964 154330 159643 192455 277640 290260 307928 308660 319286 384910 423401 580520 617320 638572 769820 798215 846802 885293 1277144 1539640 1596430 1693604 1770586 2117005 3192860 3387208 3541172 4234010 4426465 6385720 7082344 8468020 8852930 9738223 16936040 17705860 19476446 35411720 38952892 48691115 77905784 97382230 194764460 389528920
- Sum of all divisors σ(n): 1015649280
- Sum of proper divisors (its aliquot sum) s(n): 626120360
- 389528920 is an abundant number, because the sum of its proper divisors (626120360) is greater than itself. Its abundance is 236591440
Bases of 389528920
- Binary: 101110011011110111101010110002
- Hexadecimal: 0x1737BD58
- Base-36: 6FWYFS
Squares and roots of 389528920
- 389528920 squared (3895289202) is 151732779516366400
- 389528920 cubed (3895289203) is 59104305733608326116288000
-
The
square root of 389528920 is 19736.4870227707 -
The
cube root of 389528920 is 730.3200698151
Scales and comparisons
How big is 389528920?- 389,528,920 seconds is equal to 12 years, 20 weeks, 10 hours, 28 minutes, 40 seconds.
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To count from 1 to 389,528,920 would take you about eighteen 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 389528920 cubic inches would be around 60.9 feet tall.
Recreational maths with 389528920
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