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30828064 = 254123497
BaseRepresentation
bin111010110011…
…0011000100000
32011000020011011
41311212120200
530342444224
63020430304
7523014511
oct165463040
964006134
1030828064
1116446643
12a3a8394
136504b77
144146a08
152a8e394
hex1d66620

30828064 has 24 divisors (see below), whose sum is σ = 62175708. Its totient is φ = 15037440.

The previous prime is 30828059. The next prime is 30828113. The reversal of 30828064 is 46082803.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30338064 + 490000 = 5508^2 + 700^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10437 + ... + 13060.

Almost surely, 230828064 is an apocalyptic number.

It is an amenable number.

30828064 is an abundant number, since it is smaller than the sum of its proper divisors (31347644).

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

30828064 is a wasteful number, since it uses less digits than its factorization.

30828064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23548 (or 23540 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 30828064 is about 5552.3025854145. The cubic root of 30828064 is about 313.5562178570.

The spelling of 30828064 in words is "thirty million, eight hundred twenty-eight thousand, sixty-four".

Divisors: 1 2 4 8 16 32 41 82 164 328 656 1312 23497 46994 93988 187976 375952 751904 963377 1926754 3853508 7707016 15414032 30828064