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28330848 = 25327132347
BaseRepresentation
bin110110000010…
…0101101100000
31222022100121200
41230010231200
524223041343
62451121200
7462544140
oct154045540
958270550
1028330848
1114aa0427
1295a3200
135b3c320
143a96920
1527494d3
hex1b04b60

28330848 has 288 divisors, whose sum is σ = 105670656. Its totient is φ = 6994944.

The previous prime is 28330837. The next prime is 28330859. The reversal of 28330848 is 84803382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28330837) and next prime (28330859).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 602761 + ... + 602807.

It is an arithmetic number, because the mean of its divisors is an integer number (366912).

Almost surely, 228330848 is an apocalyptic number.

28330848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28330848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52835328).

28330848 is an abundant number, since it is smaller than the sum of its proper divisors (77339808).

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

28330848 is a wasteful number, since it uses less digits than its factorization.

28330848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28330848 is about 5322.6730126883. The cubic root of 28330848 is about 304.8502283562.

The spelling of 28330848 in words is "twenty-eight million, three hundred thirty thousand, eight hundred forty-eight".