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54793409761 = 97564880513
BaseRepresentation
bin110011000001111100…
…010001010011100001
312020102122110121122201
4303001330101103201
51344204103103021
641101032533201
73646555204216
oct630174212341
9166378417581
1054793409761
11212684a6822
12a752251201
135222b7776c
14291b1b5b0d
15165a5de591
hexcc1f114e1

54793409761 has 4 divisors (see below), whose sum is σ = 55358290372. Its totient is φ = 54228529152.

The previous prime is 54793409747. The next prime is 54793409771. The reversal of 54793409761 is 16790439745.

54793409761 = 1655192 + 1655202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27396539361 + 27396870400 = 165519^2 + 165520^2 .

It is a cyclic number.

It is not a de Polignac number, because 54793409761 - 225 = 54759855329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54793409731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282440160 + ... + 282440353.

It is an arithmetic number, because the mean of its divisors is an integer number (13839572593).

Almost surely, 254793409761 is an apocalyptic number.

54793409761 is the 165520-th centered square number.

It is an amenable number.

54793409761 is a deficient number, since it is larger than the sum of its proper divisors (564880611).

54793409761 is an equidigital number, since it uses as much as digits as its factorization.

54793409761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564880610.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 54793409761 in words is "fifty-four billion, seven hundred ninety-three million, four hundred nine thousand, seven hundred sixty-one".

Divisors: 1 97 564880513 54793409761