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290429569 = 1272286847
BaseRepresentation
bin10001010011111…
…001101010000001
3202020111100110201
4101103321222001
51043322221234
644452525201
710124416303
oct2123715201
9666440421
10290429569
11139a38041
1281320801
1348229921
142a801973
151a76d314
hex114f9a81

290429569 has 4 divisors (see below), whose sum is σ = 292716544. Its totient is φ = 288142596.

The previous prime is 290429567. The next prime is 290429593. The reversal of 290429569 is 965924092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290429569 - 21 = 290429567 is a prime.

It is a super-2 number, since 2×2904295692 = 168698669099051522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290429561) 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 3 ways as a sum of consecutive naturals, for example, 1143297 + ... + 1143550.

It is an arithmetic number, because the mean of its divisors is an integer number (73179136).

Almost surely, 2290429569 is an apocalyptic number.

It is an amenable number.

290429569 is a deficient number, since it is larger than the sum of its proper divisors (2286975).

290429569 is a wasteful number, since it uses less digits than its factorization.

290429569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286974.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 290429569 is about 17041.9942788396. The cubic root of 290429569 is about 662.2372568653.

The spelling of 290429569 in words is "two hundred ninety million, four hundred twenty-nine thousand, five hundred sixty-nine".

Divisors: 1 127 2286847 290429569