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29005189 = 89325901
BaseRepresentation
bin110111010100…
…1010110000101
32000120121122021
41232221112011
524411131224
62513403141
7501353143
oct156512605
960517567
1029005189
1115411034
1298694b1
136017245
143bd0593
15282e1e4
hex1ba9585

29005189 has 4 divisors (see below), whose sum is σ = 29331180. Its totient is φ = 28679200.

The previous prime is 29005187. The next prime is 29005201. The reversal of 29005189 is 98150092.

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 3452164 + 25553025 = 1858^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 29005189 - 21 = 29005187 is a prime.

It is a super-3 number, since 3×290051893 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29005187) 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, 162862 + ... + 163039.

It is an arithmetic number, because the mean of its divisors is an integer number (7332795).

Almost surely, 229005189 is an apocalyptic number.

It is an amenable number.

29005189 is a deficient number, since it is larger than the sum of its proper divisors (325991).

29005189 is an equidigital number, since it uses as much as digits as its factorization.

29005189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325990.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 29005189 is about 5385.6465721397. The cubic root of 29005189 is about 307.2500059034.

The spelling of 29005189 in words is "twenty-nine million, five thousand, one hundred eighty-nine".

Divisors: 1 89 325901 29005189