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409426290 = 232571349991
BaseRepresentation
bin11000011001110…
…101100101110010
31001112102000021200
4120121311211302
51314303120130
6104343232030
713101031440
oct3031654562
91045360250
10409426290
111a0124039
12b5148616
1366a91ca0
143c539b90
1525e26760
hex18675972

409426290 has 96 divisors (see below), whose sum is σ = 1310190336. Its totient is φ = 86382720.

The previous prime is 409426271. The next prime is 409426291. The reversal of 409426290 is 92624904.

It is not an unprimeable number, because it can be changed into a prime (409426291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16806 + ... + 33185.

It is an arithmetic number, because the mean of its divisors is an integer number (13647816).

Almost surely, 2409426290 is an apocalyptic number.

409426290 is an abundant number, since it is smaller than the sum of its proper divisors (900764046).

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

409426290 is a wasteful number, since it uses less digits than its factorization.

409426290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50024 (or 50021 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 409426290 is about 20234.2850133134. The cubic root of 409426290 is about 742.5492128045.

The spelling of 409426290 in words is "four hundred nine million, four hundred twenty-six thousand, two hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 39 42 45 63 65 70 78 90 91 105 117 126 130 182 195 210 234 273 315 390 455 546 585 630 819 910 1170 1365 1638 2730 4095 8190 49991 99982 149973 249955 299946 349937 449919 499910 649883 699874 749865 899838 1049811 1299766 1499730 1749685 1949649 2099622 2249595 3149433 3249415 3499370 3899298 4499190 4549181 5249055 5848947 6298866 6498830 9098362 9748245 10498110 11697894 13647543 15747165 19496490 22745905 27295086 29244735 31494330 40942629 45491810 58489470 68237715 81885258 136475430 204713145 409426290