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28627367 = 53540139
BaseRepresentation
bin110110100110…
…1000110100111
31222212102100212
41231031012213
524312033432
62501330035
7465220466
oct155150647
958772325
1028627367
111518318a
12970691b
135c14292
143b329dd
1527a72b2
hex1b4d1a7

28627367 has 4 divisors (see below), whose sum is σ = 29167560. Its totient is φ = 28087176.

The previous prime is 28627351. The next prime is 28627373. The reversal of 28627367 is 76372682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28627367 - 24 = 28627351 is a prime.

It is a super-2 number, since 2×286273672 = 1639052282705378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28627327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270017 + ... + 270122.

It is an arithmetic number, because the mean of its divisors is an integer number (7291890).

Almost surely, 228627367 is an apocalyptic number.

28627367 is a deficient number, since it is larger than the sum of its proper divisors (540193).

28627367 is an equidigital number, since it uses as much as digits as its factorization.

28627367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540192.

The product of its digits is 169344, while the sum is 41.

The square root of 28627367 is about 5350.4548404785. The cubic root of 28627367 is about 305.9100900644.

The spelling of 28627367 in words is "twenty-eight million, six hundred twenty-seven thousand, three hundred sixty-seven".

Divisors: 1 53 540139 28627367