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13487048699 = 61221099159
BaseRepresentation
bin11001000111110010…
…00000011111111011
31021210221021001200012
430203321000133323
5210110141024244
610110150132135
7655136010455
oct144371003773
937727231605
1013487048699
1157a10a6343
12274495104b
13136c270ab7
1491d30d2d5
1553e0ac89e
hex323e407fb

13487048699 has 4 divisors (see below), whose sum is σ = 13708147920. Its totient is φ = 13265949480.

The previous prime is 13487048681. The next prime is 13487048713. The reversal of 13487048699 is 99684078431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13487048699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13487048609) by changing a digit.

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, 110549519 + ... + 110549640.

It is an arithmetic number, because the mean of its divisors is an integer number (3427036980).

Almost surely, 213487048699 is an apocalyptic number.

13487048699 is a deficient number, since it is larger than the sum of its proper divisors (221099221).

13487048699 is an equidigital number, since it uses as much as digits as its factorization.

13487048699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221099220.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 13487048699 in words is "thirteen billion, four hundred eighty-seven million, forty-eight thousand, six hundred ninety-nine".

Divisors: 1 61 221099159 13487048699