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28925038 = 252327653
BaseRepresentation
bin110111001010…
…1110001101110
32000102112200201
41232111301232
524401100123
62511544114
7500600362
oct156256156
960375621
1028925038
111536689a
12982b03a
135cb990c
143bad2a2
1528155ad
hex1b95c6e

28925038 has 8 divisors (see below), whose sum is σ = 43472088. Its totient is φ = 14434344.

The previous prime is 28925027. The next prime is 28925051. The reversal of 28925038 is 83052982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28924988 and 28925006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12781 + ... + 14872.

It is an arithmetic number, because the mean of its divisors is an integer number (5434011).

Almost surely, 228925038 is an apocalyptic number.

28925038 is a deficient number, since it is larger than the sum of its proper divisors (14547050).

28925038 is a wasteful number, since it uses less digits than its factorization.

28925038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28178.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 28925038 is about 5378.2002565914. The cubic root of 28925038 is about 306.9667334430.

The spelling of 28925038 in words is "twenty-eight million, nine hundred twenty-five thousand, thirty-eight".

Divisors: 1 2 523 1046 27653 55306 14462519 28925038