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4457828 = 222394663
BaseRepresentation
bin10001000000010101100100
322101110222202
4101000111210
52120122303
6235314032
752614404
oct21002544
98343882
104457828
112575261
1215ab918
13c0108b
14840804
155d0c88
hex440564

4457828 has 12 divisors (see below), whose sum is σ = 7835520. Its totient is φ = 2219112.

The previous prime is 4457813. The next prime is 4457839. The reversal of 4457828 is 8287544.

It is an Ulam number.

It is a d-powerful number, because it can be written as 49 + 411 + 5 + 73 + 8 + 29 + 83 .

It is a junction number, because it is equal to n+sod(n) for n = 4457791 and 4457800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376 + ... + 3287.

It is an arithmetic number, because the mean of its divisors is an integer number (652960).

Almost surely, 24457828 is an apocalyptic number.

It is an amenable number.

4457828 is a deficient number, since it is larger than the sum of its proper divisors (3377692).

4457828 is a wasteful number, since it uses less digits than its factorization.

4457828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906 (or 4904 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 4457828 is about 2111.3569096673. The cubic root of 4457828 is about 164.5790063418.

The spelling of 4457828 in words is "four million, four hundred fifty-seven thousand, eight hundred twenty-eight".

Divisors: 1 2 4 239 478 956 4663 9326 18652 1114457 2228914 4457828