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28301675 = 521132067
BaseRepresentation
bin110101111110…
…1100101101011
31222020212121012
41223331211223
524221123200
62450334135
7462363113
oct153754553
958225535
1028301675
1114a80516
12958a34b
135b2bc6c
143a8a043
152740a35
hex1afd96b

28301675 has 6 divisors (see below), whose sum is σ = 35094108. Its totient is φ = 22641320.

The previous prime is 28301653. The next prime is 28301677. The reversal of 28301675 is 57610382.

It is a happy number.

It is not a de Polignac number, because 28301675 - 224 = 11524459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28301677) 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 5 ways as a sum of consecutive naturals, for example, 566009 + ... + 566058.

It is an arithmetic number, because the mean of its divisors is an integer number (5849018).

Almost surely, 228301675 is an apocalyptic number.

28301675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28301675 is a deficient number, since it is larger than the sum of its proper divisors (6792433).

28301675 is a wasteful number, since it uses less digits than its factorization.

28301675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132077 (or 1132072 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 28301675 is about 5319.9318604659. The cubic root of 28301675 is about 304.7455550563.

The spelling of 28301675 in words is "twenty-eight million, three hundred one thousand, six hundred seventy-five".

Divisors: 1 5 25 1132067 5660335 28301675