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28055654 = 2119371361
BaseRepresentation
bin110101100000…
…1100001100110
31221210101010022
41223001201212
524140240104
62441155142
7460316624
oct153014146
957711108
1028055654
11149226a0
12948bab2
135a73ca3
143a24514
1526e2bbe
hex1ac1866

28055654 has 16 divisors (see below), whose sum is σ = 45992016. Its totient is φ = 12729600.

The previous prime is 28055641. The next prime is 28055659. The reversal of 28055654 is 45655082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19934 + ... + 21294.

It is an arithmetic number, because the mean of its divisors is an integer number (2874501).

Almost surely, 228055654 is an apocalyptic number.

28055654 is a deficient number, since it is larger than the sum of its proper divisors (17936362).

28055654 is a wasteful number, since it uses less digits than its factorization.

28055654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 28055654 is about 5296.7588202598. The cubic root of 28055654 is about 303.8599525170.

The spelling of 28055654 in words is "twenty-eight million, fifty-five thousand, six hundred fifty-four".

Divisors: 1 2 11 22 937 1361 1874 2722 10307 14971 20614 29942 1275257 2550514 14027827 28055654