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29009907 = 34438329
BaseRepresentation
bin110111010101…
…0011111110011
32000120212010000
41232222133303
524411304112
62513441043
7501402663
oct156523763
960525100
1029009907
1115414633
129870183
136019434
143bd21a3
1528307dc
hex1baa7f3

29009907 has 20 divisors (see below), whose sum is σ = 44348920. Its totient is φ = 18887904.

The previous prime is 29009899. The next prime is 29009909. The reversal of 29009907 is 70990092.

It is not a de Polignac number, because 29009907 - 23 = 29009899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29009909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 682 + ... + 7647.

It is an arithmetic number, because the mean of its divisors is an integer number (2217446).

Almost surely, 229009907 is an apocalyptic number.

29009907 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

29009907 is a deficient number, since it is larger than the sum of its proper divisors (15339013).

29009907 is an equidigital number, since it uses as much as digits as its factorization.

29009907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384 (or 8375 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 29009907 is about 5386.0845704463. The cubic root of 29009907 is about 307.2666641518.

Adding to 29009907 its reverse (70990092), we get a palindrome (99999999).

The spelling of 29009907 in words is "twenty-nine million, nine thousand, nine hundred seven".

Divisors: 1 3 9 27 43 81 129 387 1161 3483 8329 24987 74961 224883 358147 674649 1074441 3223323 9669969 29009907