390999420
390,999,420 is an even composite number composed of five prime numbers multiplied together.
390999420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 390999420:
22 × 33 × 5 × 73 × 2111
(2 × 2 × 3 × 3 × 3 × 5 × 7 × 7 × 7 × 2111)See below for interesting mathematical facts about the number 390999420 from the Numbermatics database.
Names of 390999420
- Cardinal: 390999420 can be written as Three hundred ninety million, nine hundred ninety-nine thousand, four hundred twenty.
Scientific notation
- Scientific notation: 3.9099942 × 108
Factors of 390999420
Divisors of 390999420
- Number of divisors d(n): 192
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 49 54 60 63 70 84 90 98 105 108 126 135 140 147 180 189 196 210 245 252 270 294 315 343 378 420 441 490 540 588 630 686 735 756 882 945 980 1029 1260 1323 1372 1470 1715 1764 1890 2058 2111 2205 2646 2940 3087 3430 3780 4116 4222 4410 5145 5292 6174 6333 6615 6860 8444 8820 9261 10290 10555 12348 12666 13230 14777 15435 18522 18999 20580 21110 25332 26460 29554 30870 31665 37044 37998 42220 44331 46305 56997 59108 61740 63330 73885 75996 88662 92610 94995 103439 113994 126660 132993 147770 177324 185220 189990 206878 221655 227988 265986 284985 295540 310317 379980 398979 413756 443310 517195 531972 569970 620634 664965 724073 797958 886620 930951 1034390 1139940 1241268 1329930 1448146 1551585 1595916 1861902 1994895 2068780 2172219 2659860 2792853 2896292 3103170 3620365 3723804 3989790 4344438 4654755 5585706 6206340 6516657 7240730 7979580 8688876 9309510 10861095 11171412 13033314 13964265 14481460 18619020 19549971 21722190 26066628 27928530 32583285 39099942 43444380 55857060 65166570 78199884 97749855 130333140 195499710 390999420
- Sum of all divisors σ(n): 1419264000
- Sum of proper divisors (its aliquot sum) s(n): 1028264580
- 390999420 is an abundant number, because the sum of its proper divisors (1028264580) is greater than itself. Its abundance is 637265160
Bases of 390999420
- Binary: 101110100111000101101011111002
- Hexadecimal: 0x174E2D7C
- Base-36: 6GSH30
Squares and roots of 390999420
- 390999420 squared (3909994202) is 152880546440336400
- 390999420 cubed (3909994203) is 59776204987454597004888000
-
The
square root of 390999420 is 19773.7052673493 -
The
cube root of 390999420 is 731.2379195901
Scales and comparisons
How big is 390999420?- 390,999,420 seconds is equal to 12 years, 22 weeks, 3 days, 10 hours, 57 minutes.
-
To count from 1 to 390,999,420 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 390999420 cubic inches would be around 60.9 feet tall.
Recreational maths with 390999420
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