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53431415442 = 2325356007773
BaseRepresentation
bin110001110000110000…
…101011001010010010
312002220201122010200200
4301300300223022102
51333411420243232
640313540400030
73601036352256
oct616060531222
9162821563620
1053431415442
1120729706289
12a4320a6016
135066944b72
14282c358266
1515cac5577c
hexc70c2b292

53431415442 has 24 divisors (see below), whose sum is σ = 117952372044. Its totient is φ = 17474424864.

The previous prime is 53431415417. The next prime is 53431415447. The reversal of 53431415442 is 24451413435.

53431415442 is a `hidden beast` number, since 534 + 31 + 4 + 1 + 54 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45467459361 + 7963956081 = 213231^2 + 89241^2 .

It is a super-2 number, since 2×534314154422 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53431415397 and 53431415406.

It is not an unprimeable number, because it can be changed into a prime (53431415447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28002933 + ... + 28004840.

Almost surely, 253431415442 is an apocalyptic number.

53431415442 is an abundant number, since it is smaller than the sum of its proper divisors (64520956602).

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

53431415442 is a wasteful number, since it uses less digits than its factorization.

53431415442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56007834 (or 56007831 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 53431415442 its reverse (24451413435), we get a palindrome (77882828877).

The spelling of 53431415442 in words is "fifty-three billion, four hundred thirty-one million, four hundred fifteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 53 106 159 318 477 954 56007773 112015546 168023319 336046638 504069957 1008139914 2968411969 5936823938 8905235907 17810471814 26715707721 53431415442