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29969305 = 511295309
BaseRepresentation
bin111001001010…
…0101110011001
32002101121011021
41302110232121
530133004210
62550202441
7512510032
oct162245631
962347137
1029969305
1115a0a423
12a053421
136294022
143da1a89
15296ebda
hex1c94b99

29969305 has 8 divisors (see below), whose sum is σ = 36001800. Its totient is φ = 23949696.

The previous prime is 29969293. The next prime is 29969339. The reversal of 29969305 is 50396992.

It can be written as a sum of positive squares in 4 ways, for example, as 2396304 + 27573001 = 1548^2 + 5251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29969305 - 25 = 29969273 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2991 + ... + 8299.

It is an arithmetic number, because the mean of its divisors is an integer number (4500225).

Almost surely, 229969305 is an apocalyptic number.

It is an amenable number.

29969305 is a deficient number, since it is larger than the sum of its proper divisors (6032495).

29969305 is a wasteful number, since it uses less digits than its factorization.

29969305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 29969305 is about 5474.4228006247. The cubic root of 29969305 is about 310.6172405410.

The spelling of 29969305 in words is "twenty-nine million, nine hundred sixty-nine thousand, three hundred five".

Divisors: 1 5 1129 5309 5645 26545 5993861 29969305