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40327830 = 23251632749
BaseRepresentation
bin1001100111010…
…1101010010110
32210212212101100
42121311222112
540310442310
64000210530
7666531564
oct231655226
983785340
1040327830
1120844994
1211609a46
13847cb2a
1454daa34
153818ec0
hex2675a96

40327830 has 48 divisors (see below), whose sum is σ = 105534000. Its totient is φ = 10684224.

The previous prime is 40327813. The next prime is 40327853. The reversal of 40327830 is 3872304.

It is a junction number, because it is equal to n+sod(n) for n = 40327794 and 40327803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13296 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (2198625).

Almost surely, 240327830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40327830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52767000).

40327830 is an abundant number, since it is smaller than the sum of its proper divisors (65206170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40327830 is a wasteful number, since it uses less digits than its factorization.

40327830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2925 (or 2922 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 40327830 is about 6350.4196711713. The cubic root of 40327830 is about 342.9269508154.

The spelling of 40327830 in words is "forty million, three hundred twenty-seven thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 163 326 489 815 978 1467 1630 2445 2749 2934 4890 5498 7335 8247 13745 14670 16494 24741 27490 41235 49482 82470 123705 247410 448087 896174 1344261 2240435 2688522 4032783 4480870 6721305 8065566 13442610 20163915 40327830