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13440315254 = 27301992033
BaseRepresentation
bin11001000010001101…
…01110111101110110
31021200200022202102212
430201012232331312
5210011210042004
610101400333422
7654030536402
oct144106567566
937620282385
1013440315254
115777786863
122731174272
13136268a482
14917026102
15539e2a96e
hex3211aef76

13440315254 has 8 divisors (see below), whose sum is σ = 20160968040. Its totient is φ = 6719992576.

The previous prime is 13440315223. The next prime is 13440315283. The reversal of 13440315254 is 45251304431.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13440315254.

It is a congruent number.

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, 100022 + ... + 192054.

It is an arithmetic number, because the mean of its divisors is an integer number (2520121005).

Almost surely, 213440315254 is an apocalyptic number.

13440315254 is a deficient number, since it is larger than the sum of its proper divisors (6720652786).

13440315254 is an equidigital number, since it uses as much as digits as its factorization.

13440315254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165054.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 13440315254 its reverse (45251304431), we get a palindrome (58691619685).

The spelling of 13440315254 in words is "thirteen billion, four hundred forty million, three hundred fifteen thousand, two hundred fifty-four".

Divisors: 1 2 73019 92033 146038 184066 6720157627 13440315254