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13455144554 = 263891052993
BaseRepresentation
bin11001000011111110…
…10011011001101010
31021201201020011102012
430201333103121222
5210024004111204
610103050235522
7654300561455
oct144177233152
937651204365
1013455144554
115785095285
122736125ba2
1313657801c7
14918da649c
1553b3a976e
hex321fd366a

13455144554 has 8 divisors (see below), whose sum is σ = 20185894980. Its totient is φ = 6726512896.

The previous prime is 13455144517. The next prime is 13455144583. The reversal of 13455144554 is 45544155431.

It can be written as a sum of positive squares in 2 ways, for example, as 11821125625 + 1634018929 = 108725^2 + 40423^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 513719 + ... + 539274.

Almost surely, 213455144554 is an apocalyptic number.

13455144554 is a deficient number, since it is larger than the sum of its proper divisors (6730750426).

13455144554 is a wasteful number, since it uses less digits than its factorization.

13455144554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059384.

The product of its digits is 480000, while the sum is 41.

Adding to 13455144554 its reverse (45544155431), we get a palindrome (58999299985).

The spelling of 13455144554 in words is "thirteen billion, four hundred fifty-five million, one hundred forty-four thousand, five hundred fifty-four".

Divisors: 1 2 6389 12778 1052993 2105986 6727572277 13455144554