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28892958 = 2319253447
BaseRepresentation
bin110111000110…
…1111100011110
32000100220200120
41232031330132
524344033313
62511135410
7500405013
oct156157436
960326616
1028892958
1115344786
129814566
135ca8133
143ba170a
15280ad23
hex1b8df1e

28892958 has 16 divisors (see below), whose sum is σ = 60827520. Its totient is φ = 9124056.

The previous prime is 28892933. The next prime is 28892999. The reversal of 28892958 is 85929882.

It is a self number, because there is not a number n which added to its sum of digits gives 28892958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126610 + ... + 126837.

It is an arithmetic number, because the mean of its divisors is an integer number (3801720).

Almost surely, 228892958 is an apocalyptic number.

28892958 is an abundant number, since it is smaller than the sum of its proper divisors (31934562).

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

28892958 is a wasteful number, since it uses less digits than its factorization.

28892958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253471.

The product of its digits is 829440, while the sum is 51.

The square root of 28892958 is about 5375.2170188747. The cubic root of 28892958 is about 306.8532085494.

The spelling of 28892958 in words is "twenty-eight million, eight hundred ninety-two thousand, nine hundred fifty-eight".

Divisors: 1 2 3 6 19 38 57 114 253447 506894 760341 1520682 4815493 9630986 14446479 28892958