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290053860 = 22354834231
BaseRepresentation
bin10001010010011…
…101111011100100
3202012210021002120
4101102131323210
51043223210420
644440505540
710121263035
oct2122357344
9665707076
10290053860
11139800838
128117b2b0
1348127905
142a744a8c
151a6e6d40
hex1149dee4

290053860 has 24 divisors (see below), whose sum is σ = 812150976. Its totient is φ = 77347680.

The previous prime is 290053859. The next prime is 290053879. The reversal of 290053860 is 68350092.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417056 + ... + 2417175.

It is an arithmetic number, because the mean of its divisors is an integer number (33839624).

Almost surely, 2290053860 is an apocalyptic number.

290053860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290053860 is an abundant number, since it is smaller than the sum of its proper divisors (522097116).

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

290053860 is a wasteful number, since it uses less digits than its factorization.

290053860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834243 (or 4834241 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 290053860 is about 17030.9676765591. The cubic root of 290053860 is about 661.9515698576.

The spelling of 290053860 in words is "two hundred ninety million, fifty-three thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4834231 9668462 14502693 19336924 24171155 29005386 48342310 58010772 72513465 96684620 145026930 290053860