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52054354431 = 342922160219
BaseRepresentation
bin110000011110101011…
…100110100111111111
311222100202110012010000
4300132223212213333
51323101403320211
635525145245343
73521645466162
oct603653464777
9158322405100
1052054354431
1120092364a32
12a108a93853
134ba7568471
14273b4d7ad9
151549de2656
hexc1eae69ff

52054354431 has 20 divisors (see below), whose sum is σ = 80441598600. Its totient is φ = 33506249616.

The previous prime is 52054354379. The next prime is 52054354459. The reversal of 52054354431 is 13445345025.

52054354431 is a `hidden beast` number, since 5 + 20 + 543 + 54 + 43 + 1 = 666.

It is not a de Polignac number, because 52054354431 - 29 = 52054353919 is a prime.

It is a super-2 number, since 2×520543544312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52054354631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11077761 + ... + 11082458.

It is an arithmetic number, because the mean of its divisors is an integer number (4022079930).

Almost surely, 252054354431 is an apocalyptic number.

52054354431 is a deficient number, since it is larger than the sum of its proper divisors (28387244169).

52054354431 is a wasteful number, since it uses less digits than its factorization.

52054354431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22160260 (or 22160251 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 52054354431 its reverse (13445345025), we get a palindrome (65499699456).

The spelling of 52054354431 in words is "fifty-two billion, fifty-four million, three hundred fifty-four thousand, four hundred thirty-one".

Divisors: 1 3 9 27 29 81 87 261 783 2349 22160219 66480657 199441971 598325913 642646351 1794977739 1927939053 5783817159 17351451477 52054354431