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29047289 = 49958211
BaseRepresentation
bin110111011001…
…1100111111001
32000122202101112
41232303213321
524414003124
62514330105
7501616655
oct156634771
960582345
1029047289
111543a727
129889935
13603045b
143c01a65
15283b90e
hex1bb39f9

29047289 has 4 divisors (see below), whose sum is σ = 29106000. Its totient is φ = 28988580.

The previous prime is 29047267. The next prime is 29047303. The reversal of 29047289 is 98274092.

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 29047289 - 212 = 29043193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29047259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28607 + ... + 29604.

It is an arithmetic number, because the mean of its divisors is an integer number (7276500).

Almost surely, 229047289 is an apocalyptic number.

It is an amenable number.

29047289 is a deficient number, since it is larger than the sum of its proper divisors (58711).

29047289 is an equidigital number, since it uses as much as digits as its factorization.

29047289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58710.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 29047289 is about 5389.5536920973. The cubic root of 29047289 is about 307.3985881904.

The spelling of 29047289 in words is "twenty-nine million, forty-seven thousand, two hundred eighty-nine".

Divisors: 1 499 58211 29047289