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29830005 = 335792797
BaseRepresentation
bin111000111001…
…0101101110101
32002010112002000
41301302231311
530114030010
62543205513
7511356642
oct161625565
962115060
1029830005
11159247a7
129ba6899
1362457ba
143d66dc9
1529437c0
hex1c72b75

29830005 has 32 divisors (see below), whose sum is σ = 53721600. Its totient is φ = 15702336.

The previous prime is 29829997. The next prime is 29830027. The reversal of 29830005 is 50003892.

It is not a de Polignac number, because 29830005 - 23 = 29829997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9267 + ... + 12063.

It is an arithmetic number, because the mean of its divisors is an integer number (1678800).

Almost surely, 229830005 is an apocalyptic number.

It is an amenable number.

29830005 is a deficient number, since it is larger than the sum of its proper divisors (23891595).

29830005 is a wasteful number, since it uses less digits than its factorization.

29830005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890 (or 2884 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 29830005 is about 5461.6851795028. The cubic root of 29830005 is about 310.1352340945.

Adding to 29830005 its reverse (50003892), we get a palindrome (79833897).

It can be divided in two parts, 298 and 30005, that added together give a palindrome (30303).

The spelling of 29830005 in words is "twenty-nine million, eight hundred thirty thousand, five".

Divisors: 1 3 5 9 15 27 45 79 135 237 395 711 1185 2133 2797 3555 8391 10665 13985 25173 41955 75519 125865 220963 377595 662889 1104815 1988667 3314445 5966001 9943335 29830005