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54344621167 = 73973538053
BaseRepresentation
bin110010100111001100…
…010001110001101111
312012021100222210102221
4302213030101301233
51342244210334132
640544321500211
73632465441524
oct624714216157
9165240883387
1054344621167
1121058138261
12a647aa1667
135180bb3295
1428b775114b
151630edee97
hexca7311c6f

54344621167 has 4 divisors (see below), whose sum is σ = 54418159960. Its totient is φ = 54271082376.

The previous prime is 54344621153. The next prime is 54344621209. The reversal of 54344621167 is 76112644345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76112644345 = 515222528869.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54344621167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54344621147) 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 3 ways as a sum of consecutive naturals, for example, 36768288 + ... + 36769765.

It is an arithmetic number, because the mean of its divisors is an integer number (13604539990).

Almost surely, 254344621167 is an apocalyptic number.

54344621167 is a deficient number, since it is larger than the sum of its proper divisors (73538793).

54344621167 is an equidigital number, since it uses as much as digits as its factorization.

54344621167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73538792.

The product of its digits is 483840, while the sum is 43.

The spelling of 54344621167 in words is "fifty-four billion, three hundred forty-four million, six hundred twenty-one thousand, one hundred sixty-seven".

Divisors: 1 739 73538053 54344621167