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54320755 = 510864151
BaseRepresentation
bin1100111100110…
…1111001110011
310210012210001211
43033031321303
5102401231010
65220140551
71226501356
oct317157163
9123183054
1054320755
1128731a95
1216237757
13b33bc78
14730029d
154b8008a
hex33cde73

54320755 has 4 divisors (see below), whose sum is σ = 65184912. Its totient is φ = 43456600.

The previous prime is 54320737. The next prime is 54320801. The reversal of 54320755 is 55702345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55702345 = 511140469.

It is a de Polignac number, because none of the positive numbers 2k-54320755 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5432071 + ... + 5432080.

It is an arithmetic number, because the mean of its divisors is an integer number (16296228).

Almost surely, 254320755 is an apocalyptic number.

54320755 is a deficient number, since it is larger than the sum of its proper divisors (10864157).

54320755 is a wasteful number, since it uses less digits than its factorization.

54320755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10864156.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 54320755 is about 7370.2615286026. The cubic root of 54320755 is about 378.7232195045.

The spelling of 54320755 in words is "fifty-four million, three hundred twenty thousand, seven hundred fifty-five".

Divisors: 1 5 10864151 54320755