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290441769 = 32310340867
BaseRepresentation
bin10001010011111…
…100101000101001
3202020111222012120
4101103330220221
51043323114034
644453101453
710124500002
oct2123745051
9666458176
10290441769
11139a46222
1281327889
1348232347
142a8061a9
151a771c49
hex114fca29

290441769 has 16 divisors (see below), whose sum is σ = 408026112. Its totient is φ = 183406608.

The previous prime is 290441741. The next prime is 290441779. The reversal of 290441769 is 967144092.

It is not a de Polignac number, because 290441769 - 28 = 290441513 is a prime.

It is a super-2 number, since 2×2904417692 = 168712842359698722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 290441769.

It is not an unprimeable number, because it can be changed into a prime (290441779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13327 + ... + 27540.

It is an arithmetic number, because the mean of its divisors is an integer number (25501632).

Almost surely, 2290441769 is an apocalyptic number.

It is an amenable number.

290441769 is a deficient number, since it is larger than the sum of its proper divisors (117584343).

290441769 is a wasteful number, since it uses less digits than its factorization.

290441769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40996.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 290441769 is about 17042.3522144098. The cubic root of 290441769 is about 662.2465295454.

The spelling of 290441769 in words is "two hundred ninety million, four hundred forty-one thousand, seven hundred sixty-nine".

Divisors: 1 3 23 69 103 309 2369 7107 40867 122601 939941 2819823 4209301 12627903 96813923 290441769