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28900382 = 272064313
BaseRepresentation
bin110111000111…
…1110000011110
32000101021212112
41232033300132
524344303012
62511234022
7500435450
oct156176036
960337775
1028900382
111534a315
129818912
135cab624
143ba42d0
15280d122
hex1b8fc1e

28900382 has 8 divisors (see below), whose sum is σ = 49543536. Its totient is φ = 12385872.

The previous prime is 28900381. The next prime is 28900393. The reversal of 28900382 is 28300982.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28900381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032143 + ... + 1032170.

It is an arithmetic number, because the mean of its divisors is an integer number (6192942).

Almost surely, 228900382 is an apocalyptic number.

28900382 is a deficient number, since it is larger than the sum of its proper divisors (20643154).

28900382 is a wasteful number, since it uses less digits than its factorization.

28900382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064322.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 28900382 is about 5375.9075512884. The cubic root of 28900382 is about 306.8794881147.

The spelling of 28900382 in words is "twenty-eight million, nine hundred thousand, three hundred eighty-two".

Divisors: 1 2 7 14 2064313 4128626 14450191 28900382