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28692441 = 331062683
BaseRepresentation
bin110110101110…
…0111111011001
31222222201122000
41231130333121
524321124231
62502551213
7465611301
oct155347731
958881560
1028692441
1115218068
129738509
135c37a9b
143b4c601
1527bb6e6
hex1b5cfd9

28692441 has 8 divisors (see below), whose sum is σ = 42507360. Its totient is φ = 19128276.

The previous prime is 28692439. The next prime is 28692457. The reversal of 28692441 is 14429682.

It is not a de Polignac number, because 28692441 - 21 = 28692439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28692396 and 28692405.

It is not an unprimeable number, because it can be changed into a prime (28692541) 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 7 ways as a sum of consecutive naturals, for example, 531315 + ... + 531368.

It is an arithmetic number, because the mean of its divisors is an integer number (5313420).

Almost surely, 228692441 is an apocalyptic number.

It is an amenable number.

28692441 is a deficient number, since it is larger than the sum of its proper divisors (13814919).

28692441 is a wasteful number, since it uses less digits than its factorization.

28692441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062692 (or 1062686 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28692441 is about 5356.5325538075. The cubic root of 28692441 is about 306.1417067616.

The spelling of 28692441 in words is "twenty-eight million, six hundred ninety-two thousand, four hundred forty-one".

Divisors: 1 3 9 27 1062683 3188049 9564147 28692441