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28537327 = 713313597
BaseRepresentation
bin110110011011…
…1000111101111
31222200211212001
41230313013233
524301143302
62455353131
7464364130
oct154670757
958624761
1028537327
1115121575
1296827a7
135bb22c0
143b0bc87
15278a787
hex1b371ef

28537327 has 8 divisors (see below), whose sum is σ = 35122976. Its totient is φ = 22578912.

The previous prime is 28537279. The next prime is 28537331. The reversal of 28537327 is 72373582.

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 28537327 - 27 = 28537199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28537357) 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, 156708 + ... + 156889.

It is an arithmetic number, because the mean of its divisors is an integer number (4390372).

Almost surely, 228537327 is an apocalyptic number.

28537327 is a deficient number, since it is larger than the sum of its proper divisors (6585649).

28537327 is a wasteful number, since it uses less digits than its factorization.

28537327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313617.

The product of its digits is 70560, while the sum is 37.

The square root of 28537327 is about 5342.0339759309. The cubic root of 28537327 is about 305.5890327961.

The spelling of 28537327 in words is "twenty-eight million, five hundred thirty-seven thousand, three hundred twenty-seven".

Divisors: 1 7 13 91 313597 2195179 4076761 28537327