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28082836 = 22192231657
BaseRepresentation
bin110101100100…
…0001010010100
31221211202102001
41223020022110
524142122321
62441525044
7460462105
oct153101224
957752361
1028082836
1114941061
1294a3784
135a83482
143a303ac
1526eac91
hex1ac8294

28082836 has 24 divisors (see below), whose sum is σ = 51994880. Its totient is φ = 13234752.

The previous prime is 28082833. The next prime is 28082837. The reversal of 28082836 is 63828082.

It is a junction number, because it is equal to n+sod(n) for n = 28082795 and 28082804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082833) 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, 16120 + ... + 17776.

Almost surely, 228082836 is an apocalyptic number.

It is an amenable number.

28082836 is a deficient number, since it is larger than the sum of its proper divisors (23912044).

28082836 is a wasteful number, since it uses less digits than its factorization.

28082836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 28082836 is about 5299.3241078462. The cubic root of 28082836 is about 303.9580534229.

The spelling of 28082836 in words is "twenty-eight million, eighty-two thousand, eight hundred thirty-six".

Divisors: 1 2 4 19 38 76 223 446 892 1657 3314 4237 6628 8474 16948 31483 62966 125932 369511 739022 1478044 7020709 14041418 28082836