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13234020031 = 63232092997
BaseRepresentation
bin11000101001100111…
…10001111010111111
31021011022010212121001
430110303301322333
5204100402120111
610025110551131
7645644212531
oct142463617277
937138125531
1013234020031
115681294141
1226940684a7
13132ba0a9ab
148d7885851
15526c7b1c1
hex314cf1ebf

13234020031 has 4 divisors (see below), whose sum is σ = 13236119352. Its totient is φ = 13231920712.

The previous prime is 13234020017. The next prime is 13234020053. The reversal of 13234020031 is 13002043231.

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 13234020031 - 217 = 13233888959 is a prime.

It is a super-2 number, since 2×132340200312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13234019990 and 13234020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13234020061) 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, 1040176 + ... + 1052821.

It is an arithmetic number, because the mean of its divisors is an integer number (3309029838).

Almost surely, 213234020031 is an apocalyptic number.

13234020031 is a deficient number, since it is larger than the sum of its proper divisors (2099321).

13234020031 is an equidigital number, since it uses as much as digits as its factorization.

13234020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099320.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13234020031 its reverse (13002043231), we get a palindrome (26236063262).

The spelling of 13234020031 in words is "thirteen billion, two hundred thirty-four million, twenty thousand, thirty-one".

Divisors: 1 6323 2092997 13234020031