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54872345061 = 3237164781817
BaseRepresentation
bin110011000110101001…
…011000100111100101
312020122010222221112100
4303012221120213211
51344334310020221
641112532442313
73651534144252
oct630651304745
9166563887470
1054872345061
11212a9010006
12a774779399
135236324341
142927882429
1516624d2926
hexcc6a589e5

54872345061 has 12 divisors (see below), whose sum is σ = 81402218092. Its totient is φ = 35592872256.

The previous prime is 54872345029. The next prime is 54872345083. The reversal of 54872345061 is 16054327845.

54872345061 is a `hidden beast` number, since 5 + 48 + 72 + 34 + 506 + 1 = 666.

54872345061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31281228225 + 23591116836 = 176865^2 + 153594^2 .

It is not a de Polignac number, because 54872345061 - 25 = 54872345029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54872344998 and 54872345016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54872345261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82390576 + ... + 82391241.

Almost surely, 254872345061 is an apocalyptic number.

It is an amenable number.

54872345061 is a deficient number, since it is larger than the sum of its proper divisors (26529873031).

54872345061 is a wasteful number, since it uses less digits than its factorization.

54872345061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164781860 (or 164781857 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 54872345061 in words is "fifty-four billion, eight hundred seventy-two million, three hundred forty-five thousand, sixty-one".

Divisors: 1 3 9 37 111 333 164781817 494345451 1483036353 6096927229 18290781687 54872345061