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144430323013 = 264754563779
BaseRepresentation
bin1000011010000010110…
…1111101010101000101
3111210210121010121101201
42012200231331111011
54331243130314023
6150203403022501
713302055326634
oct2064055752505
9453717117351
10144430323013
1156286174419
1223ba950aa31
13108096b0cc2
146dc1b9b51b
153b54b49bad
hex21a0b7d545

144430323013 has 4 divisors (see below), whose sum is σ = 144484889440. Its totient is φ = 144375756588.

The previous prime is 144430322999. The next prime is 144430323017. The reversal of 144430323013 is 310323034441.

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 144430323013 - 221 = 144428225861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144430323017) 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, 27279243 + ... + 27284536.

It is an arithmetic number, because the mean of its divisors is an integer number (36121222360).

Almost surely, 2144430323013 is an apocalyptic number.

It is an amenable number.

144430323013 is a deficient number, since it is larger than the sum of its proper divisors (54566427).

144430323013 is an equidigital number, since it uses as much as digits as its factorization.

144430323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54566426.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 144430323013 its reverse (310323034441), we get a palindrome (454753357454).

The spelling of 144430323013 in words is "one hundred forty-four billion, four hundred thirty million, three hundred twenty-three thousand, thirteen".

Divisors: 1 2647 54563779 144430323013