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13304113021 = 28874608283
BaseRepresentation
bin11000110001111110…
…01010011101111101
31021100012000222002201
430120333022131331
5204221323104041
610040053151501
7650455044343
oct143077123575
937305028081
1013304113021
115707909031
1226b362b591
1313403ac934
14902ccd993
1552cec4631
hex318fca77d

13304113021 has 4 divisors (see below), whose sum is σ = 13308724192. Its totient is φ = 13299501852.

The previous prime is 13304113013. The next prime is 13304113057. The reversal of 13304113021 is 12031140331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13304113021 - 23 = 13304113013 is a prime.

It is a super-4 number, since 4×133041130214 (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13304113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13304113061) 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, 2301255 + ... + 2307028.

It is an arithmetic number, because the mean of its divisors is an integer number (3327181048).

Almost surely, 213304113021 is an apocalyptic number.

It is an amenable number.

13304113021 is a deficient number, since it is larger than the sum of its proper divisors (4611171).

13304113021 is an equidigital number, since it uses as much as digits as its factorization.

13304113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611170.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13304113021 its reverse (12031140331), we get a palindrome (25335253352).

The spelling of 13304113021 in words is "thirteen billion, three hundred four million, one hundred thirteen thousand, twenty-one".

Divisors: 1 2887 4608283 13304113021