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13203233031 = 34401077677
BaseRepresentation
bin11000100101111100…
…10101100100000111
31021002011012201202210
430102332111210013
5204020011424111
610022051034503
7645121425522
oct142276254407
937064181683
1013203233031
11566597643a
12268589ba33
13132551b731
148d374dbb9
155241e90a6
hex312f95907

13203233031 has 4 divisors (see below), whose sum is σ = 17604310712. Its totient is φ = 8802155352.

The previous prime is 13203233027. The next prime is 13203233047. The reversal of 13203233031 is 13033230231.

13203233031 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 not a de Polignac number, because 13203233031 - 22 = 13203233027 is a prime.

It is a super-2 number, since 2×132032330312 (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 = 13203232989 and 13203233007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203233011) 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, 2200538836 + ... + 2200538841.

It is an arithmetic number, because the mean of its divisors is an integer number (4401077678).

Almost surely, 213203233031 is an apocalyptic number.

13203233031 is a deficient number, since it is larger than the sum of its proper divisors (4401077681).

13203233031 is an equidigital number, since it uses as much as digits as its factorization.

13203233031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401077680.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13203233031 its reverse (13033230231), we get a palindrome (26236463262).

The spelling of 13203233031 in words is "thirteen billion, two hundred three million, two hundred thirty-three thousand, thirty-one".

Divisors: 1 3 4401077677 13203233031