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54480331 = 70277753
BaseRepresentation
bin1100111111010…
…0110111001011
310210111212222001
43033310313023
5102421332311
65223411431
71231034533
oct317646713
9123455861
1054480331
1128830974
12162b3b77
13b3967a9
1473424c3
154bb24c1
hex33f4dcb

54480331 has 4 divisors (see below), whose sum is σ = 54495112. Its totient is φ = 54465552.

The previous prime is 54480329. The next prime is 54480337. The reversal of 54480331 is 13308445.

54480331 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13308445 = 52661689.

It is a cyclic number.

It is not a de Polignac number, because 54480331 - 21 = 54480329 is a prime.

It is a super-2 number, since 2×544803312 = 5936212931739122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54480331.

It is not an unprimeable number, because it can be changed into a prime (54480337) by changing a digit.

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, 3151 + ... + 10903.

It is an arithmetic number, because the mean of its divisors is an integer number (13623778).

Almost surely, 254480331 is an apocalyptic number.

54480331 is a deficient number, since it is larger than the sum of its proper divisors (14781).

54480331 is an equidigital number, since it uses as much as digits as its factorization.

54480331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14780.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 54480331 is about 7381.0792571276. The cubic root of 54480331 is about 379.0937105108.

Adding to 54480331 its reverse (13308445), we get a palindrome (67788776).

The spelling of 54480331 in words is "fifty-four million, four hundred eighty thousand, three hundred thirty-one".

Divisors: 1 7027 7753 54480331