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13001000003 = 103126223301
BaseRepresentation
bin11000001101110101…
…11000010001000011
31020120001200020012122
430012322320101003
5203111224000003
65550024314455
7640114451045
oct140672702103
936501606178
1013001000003
1155717a8802
12262a012a2b
1312c2661c14
148b4949a95
1551159d238
hex306eb8443

13001000003 has 4 divisors (see below), whose sum is σ = 13127223408. Its totient is φ = 12874776600.

The previous prime is 13000999981. The next prime is 13001000009. The reversal of 13001000003 is 30000010031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30000010031 = 54499550469.

It is a cyclic number.

It is not a de Polignac number, because 13001000003 - 210 = 13000998979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13001000009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63111548 + ... + 63111753.

It is an arithmetic number, because the mean of its divisors is an integer number (3281805852).

Almost surely, 213001000003 is an apocalyptic number.

13001000003 is a deficient number, since it is larger than the sum of its proper divisors (126223405).

13001000003 is a wasteful number, since it uses less digits than its factorization.

13001000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126223404.

The product of its (nonzero) digits is 9, while the sum is 8.

Adding to 13001000003 its reverse (30000010031), we get a palindrome (43001010034).

The spelling of 13001000003 in words is "thirteen billion, one million, three", and thus it is an aban number and an uban number.

Divisors: 1 103 126223301 13001000003