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28832317 = 234329153
BaseRepresentation
bin110110111111…
…1001000111101
32000020211111121
41231333020331
524340113232
62505550541
7500033143
oct155771075
960224447
1028832317
1115303168
1297a5451
135c86657
143b87593
1527e7d97
hex1b7f23d

28832317 has 8 divisors (see below), whose sum is σ = 30786624. Its totient is φ = 26936448.

The previous prime is 28832303. The next prime is 28832341. The reversal of 28832317 is 71323882.

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 28832317 - 27 = 28832189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28832347) 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 7 ways as a sum of consecutive naturals, for example, 13588 + ... + 15565.

It is an arithmetic number, because the mean of its divisors is an integer number (3848328).

Almost surely, 228832317 is an apocalyptic number.

It is an amenable number.

28832317 is a deficient number, since it is larger than the sum of its proper divisors (1954307).

28832317 is a wasteful number, since it uses less digits than its factorization.

28832317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29219.

The product of its digits is 16128, while the sum is 34.

The square root of 28832317 is about 5369.5732605115. The cubic root of 28832317 is about 306.6383820532.

The spelling of 28832317 in words is "twenty-eight million, eight hundred thirty-two thousand, three hundred seventeen".

Divisors: 1 23 43 989 29153 670519 1253579 28832317