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13551112452 = 2231129259371
BaseRepresentation
bin11001001111011010…
…11001000100000100
31021222101210211121210
430213231121010010
5210223041044302
610120355211420
7656544361323
oct144755310404
937871724553
1013551112452
115824282399
1227622a6b70
13137c611647
14927a280ba
15544a1466c
hex327b59104

13551112452 has 12 divisors (see below), whose sum is σ = 31619262416. Its totient is φ = 4517037480.

The previous prime is 13551112441. The next prime is 13551112459. The reversal of 13551112452 is 25421115531.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13551112459) 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, 564629674 + ... + 564629697.

Almost surely, 213551112452 is an apocalyptic number.

13551112452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13551112452 is an abundant number, since it is smaller than the sum of its proper divisors (18068149964).

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

13551112452 is a wasteful number, since it uses less digits than its factorization.

13551112452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129259378 (or 1129259376 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

Adding to 13551112452 its reverse (25421115531), we get a palindrome (38972227983).

The spelling of 13551112452 in words is "thirteen billion, five hundred fifty-one million, one hundred twelve thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 1129259371 2258518742 3387778113 4517037484 6775556226 13551112452