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29918269 is a prime number
BaseRepresentation
bin111001000100…
…0010000111101
32002022000011001
41302020100331
530124341034
62545130301
7512205163
oct162102075
962260131
1029918269
1115985047
12a029991
136276a24
143d8b233
15295ea14
hex1c8843d

29918269 has 2 divisors, whose sum is σ = 29918270. Its totient is φ = 29918268.

The previous prime is 29918267. The next prime is 29918297. The reversal of 29918269 is 96281992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15705369 + 14212900 = 3963^2 + 3770^2 .

It is a cyclic number.

It is not a de Polignac number, because 29918269 - 21 = 29918267 is a prime.

It is a super-2 number, since 2×299182692 = 1790205639912722, which contains 22 as substring.

Together with 29918267, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29918261) 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 as a sum of consecutive naturals, namely, 14959134 + 14959135.

It is an arithmetic number, because the mean of its divisors is an integer number (14959135).

Almost surely, 229918269 is an apocalyptic number.

It is an amenable number.

29918269 is a deficient number, since it is larger than the sum of its proper divisors (1).

29918269 is an equidigital number, since it uses as much as digits as its factorization.

29918269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 46.

The square root of 29918269 is about 5469.7595011115. The cubic root of 29918269 is about 310.4408192689.

The spelling of 29918269 in words is "twenty-nine million, nine hundred eighteen thousand, two hundred sixty-nine".