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29685089 = 715727011
BaseRepresentation
bin111000100111…
…1010101100001
32001212011021202
41301033111201
530044410324
62540130545
7510214310
oct161172541
961764252
1029685089
1115835935
129b36a55
1361c4855
143d2a277
1529158ae
hex1c4f561

29685089 has 8 divisors (see below), whose sum is σ = 34143168. Its totient is φ = 25281360.

The previous prime is 29685053. The next prime is 29685109. The reversal of 29685089 is 98058692.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29685089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29685289) 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, 12407 + ... + 14604.

It is an arithmetic number, because the mean of its divisors is an integer number (4267896).

Almost surely, 229685089 is an apocalyptic number.

It is an amenable number.

29685089 is a deficient number, since it is larger than the sum of its proper divisors (4458079).

29685089 is a wasteful number, since it uses less digits than its factorization.

29685089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27175.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 29685089 is about 5448.4024263999. The cubic root of 29685089 is about 309.6321999384.

The spelling of 29685089 in words is "twenty-nine million, six hundred eighty-five thousand, eighty-nine".

Divisors: 1 7 157 1099 27011 189077 4240727 29685089