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29082257 = 178392039
BaseRepresentation
bin110111011110…
…0001010010001
32000201112100122
41232330022101
524421113012
62515200025
7502123631
oct156741221
960645318
1029082257
1115463a26
1298a6015
136043349
143c106c1
152846e72
hex1bbc291

29082257 has 8 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 27325504.

The previous prime is 29082253. The next prime is 29082271. The reversal of 29082257 is 75228092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29082257 - 22 = 29082253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29082253) 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 7 ways as a sum of consecutive naturals, for example, 13244 + ... + 15282.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 229082257 is an apocalyptic number.

It is an amenable number.

29082257 is a deficient number, since it is larger than the sum of its proper divisors (1762543).

29082257 is a wasteful number, since it uses less digits than its factorization.

29082257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 29082257 is about 5392.7967697661. The cubic root of 29082257 is about 307.5218906134.

The spelling of 29082257 in words is "twenty-nine million, eighty-two thousand, two hundred fifty-seven".

Divisors: 1 17 839 2039 14263 34663 1710721 29082257