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13254400105 = 52650880021
BaseRepresentation
bin11000101100000011…
…00001100001101001
31021012201111021210121
430112001201201221
5204121111300410
610031115443241
7646312353622
oct142601414151
937181437717
1013254400105
115691843a81
12269aa56521
131332cc50cb
148da46ca49
155289549da
hex316061869

13254400105 has 4 divisors (see below), whose sum is σ = 15905280132. Its totient is φ = 10603520080.

The previous prime is 13254400079. The next prime is 13254400121. The reversal of 13254400105 is 50100445231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50100445231 = 457109628983.

It can be written as a sum of positive squares in 2 ways, for example, as 7791416361 + 5462983744 = 88269^2 + 73912^2 .

It is not a de Polignac number, because 13254400105 - 215 = 13254367337 is a prime.

It is a super-2 number, since 2×132544001052 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13254400105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325440006 + ... + 1325440015.

It is an arithmetic number, because the mean of its divisors is an integer number (3976320033).

Almost surely, 213254400105 is an apocalyptic number.

It is an amenable number.

13254400105 is a deficient number, since it is larger than the sum of its proper divisors (2650880027).

13254400105 is an equidigital number, since it uses as much as digits as its factorization.

13254400105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650880026.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 13254400105 its reverse (50100445231), we get a palindrome (63354845336).

The spelling of 13254400105 in words is "thirteen billion, two hundred fifty-four million, four hundred thousand, one hundred five".

Divisors: 1 5 2650880021 13254400105