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28367017 = 729139739
BaseRepresentation
bin110110000110…
…1100010101001
31222101012020021
41230031202221
524230221032
62452000441
7463054450
oct154154251
958335207
1028367017
1115015618
129600121
135b52923
143aa5b97
152755097
hex1b0d8a9

28367017 has 8 divisors (see below), whose sum is σ = 33537600. Its totient is φ = 23475984.

The previous prime is 28366979. The next prime is 28367021. The reversal of 28367017 is 71076382.

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

It is not a de Polignac number, because 28367017 - 215 = 28334249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28367117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69667 + ... + 70072.

It is an arithmetic number, because the mean of its divisors is an integer number (4192200).

Almost surely, 228367017 is an apocalyptic number.

It is an amenable number.

28367017 is a deficient number, since it is larger than the sum of its proper divisors (5170583).

28367017 is a wasteful number, since it uses less digits than its factorization.

28367017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139775.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 28367017 is about 5326.0695639468. The cubic root of 28367017 is about 304.9799037193.

The spelling of 28367017 in words is "twenty-eight million, three hundred sixty-seven thousand, seventeen".

Divisors: 1 7 29 203 139739 978173 4052431 28367017