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28894006 = 216786509
BaseRepresentation
bin110111000111…
…0001100110110
32000100222010101
41232032030312
524344102011
62511144314
7500411041
oct156161466
960328111
1028894006
1115345549
12981509a
135ca875b
143ba1c58
15280b2c1
hex1b8e336

28894006 has 8 divisors (see below), whose sum is σ = 43601040. Its totient is φ = 14360328.

The previous prime is 28893989. The next prime is 28894009. The reversal of 28894006 is 60049882.

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 (28894009) 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, 42921 + ... + 43588.

It is an arithmetic number, because the mean of its divisors is an integer number (5450130).

Almost surely, 228894006 is an apocalyptic number.

28894006 is a deficient number, since it is larger than the sum of its proper divisors (14707034).

28894006 is a wasteful number, since it uses less digits than its factorization.

28894006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86678.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28894006 is about 5375.3145024268. The cubic root of 28894006 is about 306.8569185453.

The spelling of 28894006 in words is "twenty-eight million, eight hundred ninety-four thousand, six".

Divisors: 1 2 167 334 86509 173018 14447003 28894006