30900870
30,900,870 is an even composite number composed of six prime numbers multiplied together.
30900870 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 30900870:
2 × 32 × 5 × 74 × 11 × 13
(2 × 3 × 3 × 5 × 7 × 7 × 7 × 7 × 11 × 13)See below for interesting mathematical facts about the number 30900870 from the Numbermatics database.
Names of 30900870
- Cardinal: 30900870 can be written as Thirty million, nine hundred thousand, eight hundred seventy.
Scientific notation
- Scientific notation: 3.090087 × 107
Factors of 30900870
Divisors of 30900870
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 5 6 7 9 10 11 13 14 15 18 21 22 26 30 33 35 39 42 45 49 55 63 65 66 70 77 78 90 91 98 99 105 110 117 126 130 143 147 154 165 182 195 198 210 231 234 245 273 286 294 315 330 343 385 390 429 441 455 462 490 495 539 546 585 630 637 686 693 715 735 770 819 858 882 910 990 1001 1029 1078 1155 1170 1274 1287 1365 1386 1430 1470 1617 1638 1715 1911 2002 2058 2145 2205 2310 2401 2574 2695 2730 3003 3087 3185 3234 3430 3465 3773 3822 4095 4290 4410 4459 4802 4851 5005 5145 5390 5733 6006 6174 6370 6435 6930 7007 7203 7546 8085 8190 8918 9009 9555 9702 10010 10290 11319 11466 12005 12870 13377 14014 14406 15015 15435 16170 18018 18865 19110 21021 21609 22295 22638 24010 24255 26411 26754 28665 30030 30870 31213 33957 35035 36015 37730 40131 42042 43218 44590 45045 48510 49049 52822 56595 57330 62426 63063 66885 67914 70070 72030 79233 80262 90090 93639 98098 105105 108045 113190 126126 132055 133770 147147 156065 158466 169785 187278 200655 210210 216090 237699 245245 264110 280917 294294 312130 315315 339570 343343 396165 401310 441441 468195 475398 490490 561834 630630 686686 735735 792330 882882 936390 1030029 1188495 1404585 1471470 1716715 2060058 2207205 2376990 2809170 3090087 3433430 4414410 5150145 6180174 10300290 15450435 30900870
- Sum of all divisors σ(n): 110112912
- Sum of proper divisors (its aliquot sum) s(n): 79212042
- 30900870 is an abundant number, because the sum of its proper divisors (79212042) is greater than itself. Its abundance is 48311172
Bases of 30900870
- Binary: 11101011110000010100001102
- Hexadecimal: 0x1D78286
- Base-36: IEB9I
Squares and roots of 30900870
- 30900870 squared (309008702) is 954863766756900
- 30900870 cubed (309008703) is 29506121124265288503000
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The
square root of 30900870 is 5558.8550979495 -
The
cube root of 30900870 is 313.8028635337
Scales and comparisons
How big is 30900870?- 30,900,870 seconds is equal to 51 weeks, 15 hours, 34 minutes, 30 seconds.
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To count from 1 to 30,900,870 would take you about twenty-four weeks!
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 30900870 cubic inches would be around 26.2 feet tall.
Recreational maths with 30900870
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