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28674135 = 3357191597
BaseRepresentation
bin110110101100…
…0100001010111
31222221210112000
41231120201113
524320033020
62502330343
7465504030
oct155304127
958853460
1028674135
1115205336
1297299b3
135c2c659
143b45a87
1527b6090
hex1b58857

28674135 has 64 divisors (see below), whose sum is σ = 61363200. Its totient is φ = 12410496.

The previous prime is 28674133. The next prime is 28674137. The reversal of 28674135 is 53147682.

It is an interprime number because it is at equal distance from previous prime (28674133) and next prime (28674137).

It is not a de Polignac number, because 28674135 - 21 = 28674133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28674135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28674133) 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 63 ways as a sum of consecutive naturals, for example, 17157 + ... + 18753.

It is an arithmetic number, because the mean of its divisors is an integer number (958800).

Almost surely, 228674135 is an apocalyptic number.

28674135 is an abundant number, since it is smaller than the sum of its proper divisors (32689065).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28674135 is a wasteful number, since it uses less digits than its factorization.

28674135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1631 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28674135 is about 5354.8235265039. The cubic root of 28674135 is about 306.0765859823.

The spelling of 28674135 in words is "twenty-eight million, six hundred seventy-four thousand, one hundred thirty-five".

Divisors: 1 3 5 7 9 15 19 21 27 35 45 57 63 95 105 133 135 171 189 285 315 399 513 665 855 945 1197 1597 1995 2565 3591 4791 5985 7985 11179 14373 17955 23955 30343 33537 43119 55895 71865 91029 100611 151715 167685 212401 215595 273087 301833 455145 503055 637203 819261 1062005 1365435 1509165 1911609 3186015 4096305 5734827 9558045 28674135