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28824648 = 2331201027
BaseRepresentation
bin110110111110…
…1010001001000
32000020102222120
41231331101020
524334342043
62505451240
7500001606
oct155752110
960212876
1028824648
11152a8426
1297a0b20
135c83008
143b84876
1527e5983
hex1b7d448

28824648 has 16 divisors (see below), whose sum is σ = 72061680. Its totient is φ = 9608208.

The previous prime is 28824643. The next prime is 28824659. The reversal of 28824648 is 84642882.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28824643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600490 + ... + 600537.

It is an arithmetic number, because the mean of its divisors is an integer number (4503855).

Almost surely, 228824648 is an apocalyptic number.

It is an amenable number.

28824648 is an abundant number, since it is smaller than the sum of its proper divisors (43237032).

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

28824648 is a wasteful number, since it uses less digits than its factorization.

28824648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201036 (or 1201032 counting only the distinct ones).

The product of its digits is 196608, while the sum is 42.

The square root of 28824648 is about 5368.8590966797. The cubic root of 28824648 is about 306.6111924441.

The spelling of 28824648 in words is "twenty-eight million, eight hundred twenty-four thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 1201027 2402054 3603081 4804108 7206162 9608216 14412324 28824648