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54350052421 = 731124965573
BaseRepresentation
bin110010100111100000…
…111111110001000101
312012021202012201201111
4302213200333301011
51342302103134141
640545034125021
73632562552220
oct624740776105
9165252181644
1054350052421
11210602078a5
12a649880771
135182065442
1428b83665b7
151631714381
hexca783fc45

54350052421 has 8 divisors (see below), whose sum is σ = 62314072704. Its totient is φ = 46435963920.

The previous prime is 54350052389. The next prime is 54350052433. The reversal of 54350052421 is 12425005345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54350052421 - 25 = 54350052389 is a prime.

It is a super-2 number, since 2×543500524212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54350052481) 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 7 ways as a sum of consecutive naturals, for example, 12480610 + ... + 12484963.

It is an arithmetic number, because the mean of its divisors is an integer number (7789259088).

Almost surely, 254350052421 is an apocalyptic number.

It is an amenable number.

54350052421 is a deficient number, since it is larger than the sum of its proper divisors (7964020283).

54350052421 is a wasteful number, since it uses less digits than its factorization.

54350052421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24965891.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 54350052421 its reverse (12425005345), we get a palindrome (66775057766).

The spelling of 54350052421 in words is "fifty-four billion, three hundred fifty million, fifty-two thousand, four hundred twenty-one".

Divisors: 1 7 311 2177 24965573 174759011 7764293203 54350052421