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54389170023 = 318129723341
BaseRepresentation
bin110010101001110110…
…001101111101100111
312012101110211002222120
4302221312031331213
51342342111420043
640552552401023
73633546213546
oct625166157547
9165343732876
1054389170023
11210802a54a1
12a65a9a6173
13518a1b0456
1428bd62a15d
151634d8e983
hexca9d8df67

54389170023 has 4 divisors (see below), whose sum is σ = 72518893368. Its totient is φ = 36259446680.

The previous prime is 54389169971. The next prime is 54389170039. The reversal of 54389170023 is 32007198345.

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

It is a cyclic number.

It is not a de Polignac number, because 54389170023 - 212 = 54389165927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54389170223) 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, 9064861668 + ... + 9064861673.

It is an arithmetic number, because the mean of its divisors is an integer number (18129723342).

Almost surely, 254389170023 is an apocalyptic number.

54389170023 is a deficient number, since it is larger than the sum of its proper divisors (18129723345).

54389170023 is a wasteful number, since it uses less digits than its factorization.

54389170023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18129723344.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 54389170023 in words is "fifty-four billion, three hundred eighty-nine million, one hundred seventy thousand, twenty-three".

Divisors: 1 3 18129723341 54389170023