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29918828 = 2213157097
BaseRepresentation
bin111001000100…
…0011001101100
32002022000220202
41302020121230
530124400303
62545133032
7512206622
oct162103154
962260822
1029918828
1115985505
12a02a178
136277064
143d8b512
15295ec88
hex1c8866c

29918828 has 12 divisors (see below), whose sum is σ = 52758552. Its totient is φ = 14844960.

The previous prime is 29918821. The next prime is 29918839. The reversal of 29918828 is 82881992.

It is not an unprimeable number, because it can be changed into a prime (29918821) 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 in 3 ways as a sum of consecutive naturals, for example, 28025 + ... + 29072.

It is an arithmetic number, because the mean of its divisors is an integer number (4396546).

Almost surely, 229918828 is an apocalyptic number.

It is an amenable number.

29918828 is a deficient number, since it is larger than the sum of its proper divisors (22839724).

29918828 is a wasteful number, since it uses less digits than its factorization.

29918828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57232 (or 57230 counting only the distinct ones).

The product of its digits is 165888, while the sum is 47.

The square root of 29918828 is about 5469.8106000117. The cubic root of 29918828 is about 310.4427527067.

The spelling of 29918828 in words is "twenty-nine million, nine hundred eighteen thousand, eight hundred twenty-eight".

Divisors: 1 2 4 131 262 524 57097 114194 228388 7479707 14959414 29918828