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13498049965 = 52819607153
BaseRepresentation
bin11001001001000101…
…11110010110101101
31021211200221222120111
430210202332112231
5210121000044330
610111222020021
7655331350231
oct144442762655
937750858514
1013498049965
1157a732a7a4
122748577611
13137162331a
149209745c1
1554003232a
hex3248be5ad

13498049965 has 8 divisors (see below), whose sum is σ = 16255304568. Its totient is φ = 10760010240.

The previous prime is 13498049953. The next prime is 13498049969. The reversal of 13498049965 is 56994089431.

It can be written as a sum of positive squares in 4 ways, for example, as 2364001641 + 11134048324 = 48621^2 + 105518^2 .

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

It is not a de Polignac number, because 13498049965 - 25 = 13498049933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13498049969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4802172 + ... + 4804981.

It is an arithmetic number, because the mean of its divisors is an integer number (2031913071).

Almost surely, 213498049965 is an apocalyptic number.

It is an amenable number.

13498049965 is a deficient number, since it is larger than the sum of its proper divisors (2757254603).

13498049965 is an equidigital number, since it uses as much as digits as its factorization.

13498049965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607439.

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 13498049965 in words is "thirteen billion, four hundred ninety-eight million, forty-nine thousand, nine hundred sixty-five".

Divisors: 1 5 281 1405 9607153 48035765 2699609993 13498049965