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13013103403 = 16977668299
BaseRepresentation
bin11000001111010010…
…00011001100101011
31020120220110010221201
430013221003030223
5203122323302103
65551135545031
7640322360656
oct140751031453
936526403851
1013013103403
115578615213
12263208b177
1312c500bcb1
148b63ba89d
1551268e51d
hex307a4332b

13013103403 has 4 divisors (see below), whose sum is σ = 13020773400. Its totient is φ = 13005433408.

The previous prime is 13013103371. The next prime is 13013103431. The reversal of 13013103403 is 30430131031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30430131031 = 33079201733.

It is a cyclic number.

It is not a de Polignac number, because 13013103403 - 25 = 13013103371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013100403) 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, 3832453 + ... + 3835846.

It is an arithmetic number, because the mean of its divisors is an integer number (3255193350).

Almost surely, 213013103403 is an apocalyptic number.

13013103403 is a deficient number, since it is larger than the sum of its proper divisors (7669997).

13013103403 is an equidigital number, since it uses as much as digits as its factorization.

13013103403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669996.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13013103403 its reverse (30430131031), we get a palindrome (43443234434).

The spelling of 13013103403 in words is "thirteen billion, thirteen million, one hundred three thousand, four hundred three".

Divisors: 1 1697 7668299 13013103403