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29087969 = 173474931
BaseRepresentation
bin110111011110…
…1100011100001
32000201211012012
41232331203201
524421303334
62515242305
7502146401
oct156754341
960654165
1029087969
1115468249
1298a9395
136045b21
143c12801
1528489ce
hex1bbd8e1

29087969 has 8 divisors (see below), whose sum is σ = 30894048. Its totient is φ = 27292480.

The previous prime is 29087923. The next prime is 29087999. The reversal of 29087969 is 96978092.

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

It is not a de Polignac number, because 29087969 - 220 = 28039393 is a prime.

It is a super-2 number, since 2×290879692 = 1692219881089922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29087999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3434 + ... + 8364.

It is an arithmetic number, because the mean of its divisors is an integer number (3861756).

Almost surely, 229087969 is an apocalyptic number.

It is an amenable number.

29087969 is a deficient number, since it is larger than the sum of its proper divisors (1806079).

29087969 is a wasteful number, since it uses less digits than its factorization.

29087969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 29087969 is about 5393.3263390972. The cubic root of 29087969 is about 307.5420225911.

The spelling of 29087969 in words is "twenty-nine million, eighty-seven thousand, nine hundred sixty-nine".

Divisors: 1 17 347 4931 5899 83827 1711057 29087969