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54120618 = 2323006701
BaseRepresentation
bin1100111001110…
…1000010101010
310202211121112100
43032131002222
5102323324433
65211554230
71225006026
oct316350252
9122747470
1054120618
1128605692
121615b976
13b29bb46
14728b386
154b40b13
hex339d0aa

54120618 has 12 divisors (see below), whose sum is σ = 117261378. Its totient is φ = 18040200.

The previous prime is 54120613. The next prime is 54120631. The reversal of 54120618 is 81602145.

54120618 is a `hidden beast` number, since 5 + 41 + 2 + 0 + 618 = 666.

54120618 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 only one way, i.e., 42810849 + 11309769 = 6543^2 + 3363^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54120591 and 54120600.

It is not an unprimeable number, because it can be changed into a prime (54120611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1503333 + ... + 1503368.

Almost surely, 254120618 is an apocalyptic number.

54120618 is an abundant number, since it is smaller than the sum of its proper divisors (63140760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54120618 is a wasteful number, since it uses less digits than its factorization.

54120618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006709 (or 3006706 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 54120618 is about 7356.6716659098. The cubic root of 54120618 is about 378.2575300572.

The spelling of 54120618 in words is "fifty-four million, one hundred twenty thousand, six hundred eighteen".

Divisors: 1 2 3 6 9 18 3006701 6013402 9020103 18040206 27060309 54120618