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290075258 = 21147280537
BaseRepresentation
bin10001010010100…
…011001001111010
3202012211100110002
4101102203021322
51043224402013
644441153002
710121412314
oct2122431172
9665740402
10290075258
11139815920
128118b762
1348134585
142a74c7b4
151a6ed358
hex114a327a

290075258 has 16 divisors (see below), whose sum is σ = 484769664. Its totient is φ = 129046560.

The previous prime is 290075251. The next prime is 290075273. The reversal of 290075258 is 852570092.

It is not an unprimeable number, because it can be changed into a prime (290075251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139235 + ... + 141302.

It is an arithmetic number, because the mean of its divisors is an integer number (30298104).

Almost surely, 2290075258 is an apocalyptic number.

290075258 is a deficient number, since it is larger than the sum of its proper divisors (194694406).

290075258 is a wasteful number, since it uses less digits than its factorization.

290075258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280597.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 290075258 is about 17031.5958735522. The cubic root of 290075258 is about 661.9678473993.

The spelling of 290075258 in words is "two hundred ninety million, seventy-five thousand, two hundred fifty-eight".

Divisors: 1 2 11 22 47 94 517 1034 280537 561074 3085907 6171814 13185239 26370478 145037629 290075258