213087490
213,087,490 is an even composite number composed of seven prime numbers multiplied together.
213087490 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 213087490:
2 × 5 × 7 × 11 × 31 × 79 × 113
See below for interesting mathematical facts about the number 213087490 from the Numbermatics database.
Names of 213087490
- Cardinal: 213087490 can be written as Two hundred thirteen million, eighty-seven thousand, four hundred ninety.
Scientific notation
- Scientific notation: 2.1308749 × 108
Factors of 213087490
Divisors of 213087490
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 5 7 10 11 14 22 31 35 55 62 70 77 79 110 113 154 155 158 217 226 310 341 385 395 434 553 565 682 770 790 791 869 1085 1106 1130 1243 1582 1705 1738 2170 2387 2449 2486 2765 3410 3503 3955 4345 4774 4898 5530 6083 6215 7006 7910 8690 8701 8927 11935 12166 12245 12430 17143 17402 17515 17854 23870 24490 24521 26939 30415 34286 35030 38533 43505 44635 49042 53878 60830 62489 77066 85715 87010 89270 98197 122605 124978 134695 171430 188573 192665 196394 245210 269390 269731 276737 312445 377146 385330 490985 539462 553474 624890 687379 942865 981970 1348655 1374758 1383685 1885730 1937159 2697310 2767370 3044107 3436895 3874318 6088214 6873790 9685795 15220535 19371590 21308749 30441070 42617498 106543745 213087490
- Sum of all divisors σ(n): 504299520
- Sum of proper divisors (its aliquot sum) s(n): 291212030
- 213087490 is an abundant number, because the sum of its proper divisors (291212030) is greater than itself. Its abundance is 78124540
Bases of 213087490
- Binary: 11001011001101110101000000102
- Hexadecimal: 0xCB37502
- Base-36: 3IV7CY
Squares and roots of 213087490
- 213087490 squared (2130874902) is 45406278394500100
- 213087490 cubed (2130874903) is 9675509893325256113749000
-
The
square root of 213087490 is 14597.5165696087 -
The
cube root of 213087490 is 597.2910189249
Scales and comparisons
How big is 213087490?- 213,087,490 seconds is equal to 6 years, 40 weeks, 2 days, 6 hours, 58 minutes, 10 seconds.
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To count from 1 to 213,087,490 would take you about ten 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 213087490 cubic inches would be around 49.8 feet tall.
Recreational maths with 213087490
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