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28659150 = 23352132371
BaseRepresentation
bin110110101010…
…0110111001110
31222221000222000
41231110313032
524314043100
62502133130
7465412242
oct155246716
958830860
1028659150
11151a5053
1297211a6
135c258a0
143b40422
1527b1900
hex1b54dce

28659150 has 192 divisors, whose sum is σ = 89994240. Its totient is φ = 6652800.

The previous prime is 28659131. The next prime is 28659151. The reversal of 28659150 is 5195682.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28659151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 403615 + ... + 403685.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 228659150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28659150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44997120).

28659150 is an abundant number, since it is smaller than the sum of its proper divisors (61335090).

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

28659150 is a wasteful number, since it uses less digits than its factorization.

28659150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 28659150 is about 5353.4241378766. The cubic root of 28659150 is about 306.0232585166.

The spelling of 28659150 in words is "twenty-eight million, six hundred fifty-nine thousand, one hundred fifty".