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28448160 = 2535134797
BaseRepresentation
bin110110010000…
…1010110100000
31222112022112120
41230201112200
524240320120
62453424240
7463543146
oct154412640
958468476
1028448160
1115070584
12963b080
135b80840
143ac7596
15276e140
hex1b215a0

28448160 has 192 divisors, whose sum is σ = 99574272. Its totient is φ = 6782976.

The previous prime is 28448141. The next prime is 28448183. The reversal of 28448160 is 6184482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293232 + ... + 293328.

It is an arithmetic number, because the mean of its divisors is an integer number (518616).

Almost surely, 228448160 is an apocalyptic number.

28448160 is a gapful number since it is divisible by the number (20) 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 28448160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49787136).

28448160 is an abundant number, since it is smaller than the sum of its proper divisors (71126112).

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

28448160 is a wasteful number, since it uses less digits than its factorization.

28448160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 28448160 is about 5333.6816552921. The cubic root of 28448160 is about 305.2704221731.

The spelling of 28448160 in words is "twenty-eight million, four hundred forty-eight thousand, one hundred sixty".