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28892675 = 5271071543
BaseRepresentation
bin110111000110…
…1111000000011
32000100220022002
41232031320003
524344031200
62511134215
7500404130
oct156157003
960326262
1028892675
1115344549
12981436b
135ca7c76
143ba1587
15280abd5
hex1b8de03

28892675 has 24 divisors (see below), whose sum is σ = 41354496. Its totient is φ = 19614240.

The previous prime is 28892657. The next prime is 28892681. The reversal of 28892675 is 57629882.

It is a de Polignac number, because none of the positive numbers 2k-28892675 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 17954 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (1723104).

Almost surely, 228892675 is an apocalyptic number.

28892675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28892675 is a deficient number, since it is larger than the sum of its proper divisors (12461821).

28892675 is a wasteful number, since it uses less digits than its factorization.

28892675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1662 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 28892675 is about 5375.1906942917. The cubic root of 28892675 is about 306.8522066934.

The spelling of 28892675 in words is "twenty-eight million, eight hundred ninety-two thousand, six hundred seventy-five".

Divisors: 1 5 7 25 35 107 175 535 749 1543 2675 3745 7715 10801 18725 38575 54005 165101 270025 825505 1155707 4127525 5778535 28892675