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56488454929 = 2376732
BaseRepresentation
bin110100100110111110…
…010110101100010001
312101210202222211111101
4310212332112230101
51411142021024204
641541143344401
74036556641654
oct644676265421
9171722884441
1056488454929
1121a582952a5
12ab45a52101
1354330aa97a
142a3c36b89b
151709314ea4
hexd26f96b11

56488454929 has 3 divisors (see below), whose sum is σ = 56488692603. Its totient is φ = 56488217256.

The previous prime is 56488454927. The next prime is 56488454951. The reversal of 56488454929 is 92945488465.

The square root of 56488454929 is 237673.

It is a perfect power (a square), and thus also a powerful number.

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.

It can be written as a sum of positive squares in only one way, i.e., 296700625 + 56191754304 = 17225^2 + 237048^2 .

It is not a de Polignac number, because 56488454929 - 21 = 56488454927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56488454921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 118837 + ... + 356509.

It is an arithmetic number, because the mean of its divisors is an integer number (18829564201).

Almost surely, 256488454929 is an apocalyptic number.

56488454929 is the 237673-rd square number.

56488454929 is the 118837-th centered octagonal number.

It is an amenable number.

56488454929 is a deficient number, since it is larger than the sum of its proper divisors (237674).

56488454929 is an frugal number, since it uses more digits than its factorization.

56488454929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475346 (or 237673 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 64.

Multiplying 56488454929 by its sum of digits (64), we get a square (3615261115456 = 19013842).

The spelling of 56488454929 in words is "fifty-six billion, four hundred eighty-eight million, four hundred fifty-four thousand, nine hundred twenty-nine".

Divisors: 1 237673 56488454929