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28677452 = 2253135271
BaseRepresentation
bin110110101100…
…1010101001100
31222221222001212
41231121111030
524320134302
62502353552
7465516506
oct155312514
958858055
1028677452
1115207881
12972b8b8
135c3100b
143b46d76
1527b7052
hex1b5954c

28677452 has 12 divisors (see below), whose sum is σ = 51132816. Its totient is φ = 14068080.

The previous prime is 28677437. The next prime is 28677457. The reversal of 28677452 is 25477682.

It is not an unprimeable number, because it can be changed into a prime (28677457) by changing a digit.

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, 67424 + ... + 67847.

It is an arithmetic number, because the mean of its divisors is an integer number (4261068).

Almost surely, 228677452 is an apocalyptic number.

It is an amenable number.

28677452 is a deficient number, since it is larger than the sum of its proper divisors (22455364).

28677452 is a wasteful number, since it uses less digits than its factorization.

28677452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135328 (or 135326 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 28677452 is about 5355.1332383051. The cubic root of 28677452 is about 306.0883877552.

The spelling of 28677452 in words is "twenty-eight million, six hundred seventy-seven thousand, four hundred fifty-two".

Divisors: 1 2 4 53 106 212 135271 270542 541084 7169363 14338726 28677452