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13000649813 = 19897688143
BaseRepresentation
bin11000001101110011…
…00010110001010101
31020120001000102211122
430012321202301111
5203111131243223
65550013013325
7640111462064
oct140671426125
936501012748
1013000649813
115571589698
122629a84245
1312c256b6c8
148b48981db
1551152e5c8
hex306e62c55

13000649813 has 8 divisors (see below), whose sum is σ = 13838659200. Its totient is φ = 12178016928.

The previous prime is 13000649791. The next prime is 13000649821. The reversal of 13000649813 is 31894600031.

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

It is a cyclic number.

It is not a de Polignac number, because 13000649813 - 210 = 13000648789 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 (13000649843) 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, 3842381 + ... + 3845762.

It is an arithmetic number, because the mean of its divisors is an integer number (1729832400).

Almost surely, 213000649813 is an apocalyptic number.

It is an amenable number.

13000649813 is a deficient number, since it is larger than the sum of its proper divisors (838009387).

13000649813 is an equidigital number, since it uses as much as digits as its factorization.

13000649813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688251.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 13000649813 in words is "thirteen billion, six hundred forty-nine thousand, eight hundred thirteen".

Divisors: 1 19 89 1691 7688143 146074717 684244727 13000649813