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29680967 = 280310589
BaseRepresentation
bin111000100111…
…0010101000111
32001211221122002
41301032111013
530044242332
62540055515
7510166301
oct161162507
961757562
1029680967
1115832828
129b3459b
1361c2a04
143d28971
152914562
hex1c4e547

29680967 has 4 divisors (see below), whose sum is σ = 29694360. Its totient is φ = 29667576.

The previous prime is 29680957. The next prime is 29680969. The reversal of 29680967 is 76908692.

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 29680967 - 24 = 29680951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29680969) 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 3 ways as a sum of consecutive naturals, for example, 2492 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (7423590).

Almost surely, 229680967 is an apocalyptic number.

29680967 is a deficient number, since it is larger than the sum of its proper divisors (13393).

29680967 is a wasteful number, since it uses less digits than its factorization.

29680967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13392.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 29680967 is about 5448.0241372446. The cubic root of 29680967 is about 309.6178676811.

The spelling of 29680967 in words is "twenty-nine million, six hundred eighty thousand, nine hundred sixty-seven".

Divisors: 1 2803 10589 29680967