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13423501031 = 15991839441
BaseRepresentation
bin11001000000001101…
…00101111011100111
31021122111200111122212
430200012211323213
5204442404013111
610100000114035
7653434606343
oct144006457347
937574614585
1013423501031
115769242006
12272760591b
13135c051125
14914aca623
1553870898b
hex3201a5ee7

13423501031 has 4 divisors (see below), whose sum is σ = 13424356464. Its totient is φ = 13422645600.

The previous prime is 13423500977. The next prime is 13423501033. The reversal of 13423501031 is 13010532431.

13423501031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13423501031 - 210 = 13423500007 is a prime.

It is a super-2 number, since 2×134235010312 (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 = 13423500988 and 13423501006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423501033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403730 + ... + 435711.

It is an arithmetic number, because the mean of its divisors is an integer number (3356089116).

Almost surely, 213423501031 is an apocalyptic number.

13423501031 is a deficient number, since it is larger than the sum of its proper divisors (855433).

13423501031 is an equidigital number, since it uses as much as digits as its factorization.

13423501031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855432.

The product of its (nonzero) digits is 1080, while the sum is 23.

The spelling of 13423501031 in words is "thirteen billion, four hundred twenty-three million, five hundred one thousand, thirty-one".

Divisors: 1 15991 839441 13423501031