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13043634031 = 16778105593
BaseRepresentation
bin11000010010111011…
…00000111101101111
31020200000220021002201
430021131200331233
5203203132242111
65554150202331
7641143026361
oct141135407557
936600807081
1013043634031
11559387833a
1226403533a7
1312cb43b65c
148ba486d31
155151c06c1
hex309760f6f

13043634031 has 4 divisors (see below), whose sum is σ = 13121739792. Its totient is φ = 12965528272.

The previous prime is 13043634017. The next prime is 13043634103.

13043634031 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 13043634031 - 27 = 13043633903 is a prime.

It is a super-2 number, since 2×130436340312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043634631) 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, 39052630 + ... + 39052963.

It is an arithmetic number, because the mean of its divisors is an integer number (3280434948).

Almost surely, 213043634031 is an apocalyptic number.

13043634031 is a deficient number, since it is larger than the sum of its proper divisors (78105761).

13043634031 is an equidigital number, since it uses as much as digits as its factorization.

13043634031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78105760.

The product of its (nonzero) digits is 7776, while the sum is 28.

The spelling of 13043634031 in words is "thirteen billion, forty-three million, six hundred thirty-four thousand, thirty-one".

Divisors: 1 167 78105593 13043634031