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28027654 = 242133287
BaseRepresentation
bin110101011101…
…0101100000110
31221201221201021
41222322230012
524133341104
62440421354
7460142164
oct152725406
957657637
1028027654
1114903656
12947785a
135a64315
143a18234
1526d9754
hex1abab06

28027654 has 8 divisors (see below), whose sum is σ = 42142608. Its totient is φ = 13980120.

The previous prime is 28027621. The next prime is 28027697. The reversal of 28027654 is 45672082.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15802 + ... + 17485.

It is an arithmetic number, because the mean of its divisors is an integer number (5267826).

Almost surely, 228027654 is an apocalyptic number.

28027654 is a deficient number, since it is larger than the sum of its proper divisors (14114954).

28027654 is a wasteful number, since it uses less digits than its factorization.

28027654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33710.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28027654 is about 5294.1150346399. The cubic root of 28027654 is about 303.7588331414.

The spelling of 28027654 in words is "twenty-eight million, twenty-seven thousand, six hundred fifty-four".

Divisors: 1 2 421 842 33287 66574 14013827 28027654