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290938274 = 21139733311
BaseRepresentation
bin10001010101110…
…101110110100010
3202021110012021122
4101111311312202
51043440011044
644511452242
710131635354
oct2125656642
9667405248
10290938274
1113a255260
1281527082
1348377333
142a8d50d4
151a81ddee
hex11575da2

290938274 has 16 divisors (see below), whose sum is σ = 477294336. Its totient is φ = 131907600.

The previous prime is 290938261. The next prime is 290938303. The reversal of 290938274 is 472839092.

It is a Curzon 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, 7922 + ... + 25389.

It is an arithmetic number, because the mean of its divisors is an integer number (29830896).

Almost surely, 2290938274 is an apocalyptic number.

290938274 is a deficient number, since it is larger than the sum of its proper divisors (186356062).

290938274 is a wasteful number, since it uses less digits than its factorization.

290938274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33721.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 290938274 is about 17056.9127921790. The cubic root of 290938274 is about 662.6236809079.

The spelling of 290938274 in words is "two hundred ninety million, nine hundred thirty-eight thousand, two hundred seventy-four".

Divisors: 1 2 11 22 397 794 4367 8734 33311 66622 366421 732842 13224467 26448934 145469137 290938274