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53331808 = 251666619
BaseRepresentation
bin1100101101110…
…0011101100000
310201100112111011
43023130131200
5102123104213
65143030304
71215212215
oct313343540
9121315434
1053331808
1128116a82
1215a3b394
13b083aaa
147123b0c
154a3703d
hex32dc760

53331808 has 12 divisors (see below), whose sum is σ = 104997060. Its totient is φ = 26665888.

The previous prime is 53331791. The next prime is 53331809. The reversal of 53331808 is 80813335.

53331808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53331808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53331809) 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 as a sum of consecutive naturals, namely, 833278 + ... + 833341.

It is an arithmetic number, because the mean of its divisors is an integer number (8749755).

Almost surely, 253331808 is an apocalyptic number.

It is an amenable number.

53331808 is a deficient number, since it is larger than the sum of its proper divisors (51665252).

53331808 is a wasteful number, since it uses less digits than its factorization.

53331808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666629 (or 1666621 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 53331808 is about 7302.8630002212. The cubic root of 53331808 is about 376.4108230341.

The spelling of 53331808 in words is "fifty-three million, three hundred thirty-one thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 1666619 3333238 6666476 13332952 26665904 53331808