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29905067 = 61490247
BaseRepresentation
bin111001000010…
…1000010101011
32002021100001002
41302011002223
530123430232
62544545215
7512121533
oct162050253
962240032
1029905067
1115976135
12a02220b
136270a0a
143d864c3
15295ab62
hex1c850ab

29905067 has 4 divisors (see below), whose sum is σ = 30395376. Its totient is φ = 29414760.

The previous prime is 29905039. The next prime is 29905087. The reversal of 29905067 is 76050992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29905067 - 212 = 29900971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29905067.

It is not an unprimeable number, because it can be changed into a prime (29905087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245063 + ... + 245184.

It is an arithmetic number, because the mean of its divisors is an integer number (7598844).

Almost surely, 229905067 is an apocalyptic number.

29905067 is a deficient number, since it is larger than the sum of its proper divisors (490309).

29905067 is an equidigital number, since it uses as much as digits as its factorization.

29905067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490308.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 29905067 is about 5468.5525507213. The cubic root of 29905067 is about 310.3951499302.

The spelling of 29905067 in words is "twenty-nine million, nine hundred five thousand, sixty-seven".

Divisors: 1 61 490247 29905067