90990400
90,990,400 is an even composite number composed of five prime numbers multiplied together.
90990400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 90990400:
26 × 52 × 29 × 37 × 53
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 29 × 37 × 53)See below for interesting mathematical facts about the number 90990400 from the Numbermatics database.
Names of 90990400
- Cardinal: 90990400 can be written as Ninety million, nine hundred ninety thousand, four hundred.
Scientific notation
- Scientific notation: 9.09904 × 107
Factors of 90990400
Divisors of 90990400
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 4 5 8 10 16 20 25 29 32 37 40 50 53 58 64 74 80 100 106 116 145 148 160 185 200 212 232 265 290 296 320 370 400 424 464 530 580 592 725 740 800 848 925 928 1060 1073 1160 1184 1325 1450 1480 1537 1600 1696 1850 1856 1961 2120 2146 2320 2368 2650 2900 2960 3074 3392 3700 3922 4240 4292 4640 5300 5365 5800 5920 6148 7400 7685 7844 8480 8584 9280 9805 10600 10730 11600 11840 12296 14800 15370 15688 16960 17168 19610 21200 21460 23200 24592 26825 29600 30740 31376 34336 38425 39220 42400 42920 46400 49025 49184 53650 56869 59200 61480 62752 68672 76850 78440 84800 85840 98050 98368 107300 113738 122960 125504 153700 156880 171680 196100 214600 227476 245920 284345 307400 313760 343360 392200 429200 454952 491840 568690 614800 627520 784400 858400 909904 1137380 1229600 1421725 1568800 1716800 1819808 2274760 2459200 2843450 3137600 3639616 4549520 5686900 9099040 11373800 18198080 22747600 45495200 90990400
- Sum of all divisors σ(n): 242361720
- Sum of proper divisors (its aliquot sum) s(n): 151371320
- 90990400 is an abundant number, because the sum of its proper divisors (151371320) is greater than itself. Its abundance is 60380920
Bases of 90990400
- Binary: 1010110110001100111010000002
- Hexadecimal: 0x56C6740
- Base-36: 1I68N4
Squares and roots of 90990400
- 90990400 squared (909904002) is 8279252892160000
- 90990400 cubed (909904003) is 753332532358795264000000
-
The
square root of 90990400 is 9538.8888241765 -
The
cube root of 90990400 is 449.7783270343
Scales and comparisons
How big is 90990400?- 90,990,400 seconds is equal to 2 years, 46 weeks, 3 days, 3 hours, 6 minutes, 40 seconds.
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To count from 1 to 90,990,400 would take you about four 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 90990400 cubic inches would be around 37.5 feet tall.
Recreational maths with 90990400
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