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29280349 = 719211587
BaseRepresentation
bin110111110110…
…0100001011101
32001002121002101
41233230201131
524443432344
62523325101
7503610310
oct157544135
961077071
1029280349
111558983a
129980791
1360b2567
143c62977
1528859d4
hex1bec85d

29280349 has 12 divisors (see below), whose sum is σ = 35320224. Its totient is φ = 23774472.

The previous prime is 29280347. The next prime is 29280353. The reversal of 29280349 is 94308292.

It is not a de Polignac number, because 29280349 - 21 = 29280347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29280347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3267 + ... + 8320.

It is an arithmetic number, because the mean of its divisors is an integer number (2943352).

Almost surely, 229280349 is an apocalyptic number.

It is an amenable number.

29280349 is a deficient number, since it is larger than the sum of its proper divisors (6039875).

29280349 is a wasteful number, since it uses less digits than its factorization.

29280349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632 (or 11613 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 29280349 is about 5411.1319518193. The cubic root of 29280349 is about 308.2185334171.

The spelling of 29280349 in words is "twenty-nine million, two hundred eighty thousand, three hundred forty-nine".

Divisors: 1 7 19 133 361 2527 11587 81109 220153 1541071 4182907 29280349