7128090090
7,128,090,090 is an even composite number composed of seven prime numbers multiplied together.
7128090090 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 7128090090:
2 × 32 × 5 × 11 × 29 × 31 × 8009
(2 × 3 × 3 × 5 × 11 × 29 × 31 × 8009)See below for interesting mathematical facts about the number 7128090090 from the Numbermatics database.
Names of 7128090090
- Cardinal: 7128090090 can be written as Seven billion, one hundred twenty-eight million, ninety thousand and ninety.
Scientific notation
- Scientific notation: 7.12809009 × 109
Factors of 7128090090
Divisors of 7128090090
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 22 29 30 31 33 45 55 58 62 66 87 90 93 99 110 145 155 165 174 186 198 261 279 290 310 319 330 341 435 465 495 522 558 638 682 870 899 930 957 990 1023 1305 1395 1595 1705 1798 1914 2046 2610 2697 2790 2871 3069 3190 3410 4495 4785 5115 5394 5742 6138 8009 8091 8990 9570 9889 10230 13485 14355 15345 16018 16182 19778 24027 26970 28710 29667 30690 40045 40455 48054 49445 59334 72081 80090 80910 88099 89001 98890 120135 144162 148335 176198 178002 232261 240270 248279 264297 296670 360405 440495 445005 464522 496558 528594 696783 720810 744837 792891 880990 890010 1161305 1241395 1321485 1393566 1489674 1585782 2090349 2234511 2322610 2482790 2554871 2642970 2731069 3483915 3724185 3964455 4180698 4469022 5109742 5462138 6967830 7200091 7448370 7664613 7928910 8193207 10451745 11172555 12774355 13655345 14400182 15329226 16386414 20903490 21600273 22345110 22993839 24579621 25548710 27310690 36000455 38323065 40966035 43200546 45987678 49159242 64800819 72000910 76646130 79201001 81932070 108001365 114969195 122898105 129601638 158402002 216002730 229938390 237603003 245796210 324004095 396005005 475206006 648008190 712809009 792010010 1188015015 1425618018 2376030030 3564045045 7128090090
- Sum of all divisors σ(n): 21592396800
- Sum of proper divisors (its aliquot sum) s(n): 14464306710
- 7128090090 is an abundant number, because the sum of its proper divisors (14464306710) is greater than itself. Its abundance is 7336216620
Bases of 7128090090
- Binary: 1101010001101111000000101111010102
- Hexadecimal: 0x1A8DE05EA
- Base-36: 39VVPII
Squares and roots of 7128090090
- 7128090090 squared (71280900902) is 50809668331156208100
- 7128090090 cubed (71280900903) is 362175893307501405199587729000
-
The
square root of 7128090090 is 84428.0172099287 -
The
cube root of 7128090090 is 1924.5287058973
Scales and comparisons
How big is 7128090090?- 7,128,090,090 seconds is equal to 226 years, 33 weeks, 6 days, 1 hour, 1 minute, 30 seconds.
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To count from 1 to 7,128,090,090 would take you about four hundred fifty-three 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 7128090090 cubic inches would be around 160.4 feet tall.
Recreational maths with 7128090090
- 7128090090 backwards is 0900908217
- The number of decimal digits it has is: 10
- The sum of 7128090090's digits is 36
- More coming soon!
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