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29006189 = 233312433
BaseRepresentation
bin110111010100…
…1100101101101
32000120200000022
41232221211231
524411144224
62513411525
7501356102
oct156514555
960520008
1029006189
1115411863
129869ba5
136017834
143bd0aa9
15282e65e
hex1ba996d

29006189 has 4 divisors (see below), whose sum is σ = 29020956. Its totient is φ = 28991424.

The previous prime is 29006183. The next prime is 29006213. The reversal of 29006189 is 98160092.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6604900 + 22401289 = 2570^2 + 4733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29006189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29006183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884 + ... + 8549.

It is an arithmetic number, because the mean of its divisors is an integer number (7255239).

Almost surely, 229006189 is an apocalyptic number.

It is an amenable number.

29006189 is a deficient number, since it is larger than the sum of its proper divisors (14767).

29006189 is a wasteful number, since it uses less digits than its factorization.

29006189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14766.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 29006189 is about 5385.7394107030. The cubic root of 29006189 is about 307.2535368402.

The spelling of 29006189 in words is "twenty-nine million, six thousand, one hundred eighty-nine".

Divisors: 1 2333 12433 29006189