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29336081 = 291011589
BaseRepresentation
bin110111111101…
…0001000010001
32001012102112112
41233322020101
530002223311
62524435105
7504231635
oct157721021
961172475
1029336081
11156176a5
1299a8a95
136101a38
143c78dc5
15289728b
hex1bfa211

29336081 has 4 divisors (see below), whose sum is σ = 30347700. Its totient is φ = 28324464.

The previous prime is 29336071. The next prime is 29336093. The reversal of 29336081 is 18063392.

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 15085456 + 14250625 = 3884^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 29336081 - 218 = 29073937 is a prime.

It is a super-2 number, since 2×293360812 = 1721211296877122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29336011) 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, 505766 + ... + 505823.

It is an arithmetic number, because the mean of its divisors is an integer number (7586925).

Almost surely, 229336081 is an apocalyptic number.

It is an amenable number.

29336081 is a deficient number, since it is larger than the sum of its proper divisors (1011619).

29336081 is a wasteful number, since it uses less digits than its factorization.

29336081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011618.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 29336081 is about 5416.2792579408. The cubic root of 29336081 is about 308.4139631029.

The spelling of 29336081 in words is "twenty-nine million, three hundred thirty-six thousand, eighty-one".

Divisors: 1 29 1011589 29336081