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14440423031 = 17291835141
BaseRepresentation
bin11010111001011011…
…10101111001110111
31101021101012111101122
431130231311321313
5214033222014111
610344524214155
71020563366456
oct153455657167
941241174348
1014440423031
116140273611
12297009a35b
131491934718
149adba0b9d
15597b2dcdb
hex35cb75e77

14440423031 has 4 divisors (see below), whose sum is σ = 14441275464. Its totient is φ = 14439570600.

The previous prime is 14440422991. The next prime is 14440423037. The reversal of 14440423031 is 13032404441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14440423031 is a prime.

It is a super-2 number, since 2×144404230312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14440423037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400280 + ... + 434861.

It is an arithmetic number, because the mean of its divisors is an integer number (3610318866).

Almost surely, 214440423031 is an apocalyptic number.

14440423031 is a deficient number, since it is larger than the sum of its proper divisors (852433).

14440423031 is an equidigital number, since it uses as much as digits as its factorization.

14440423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852432.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 14440423031 its reverse (13032404441), we get a palindrome (27472827472).

The spelling of 14440423031 in words is "fourteen billion, four hundred forty million, four hundred twenty-three thousand, thirty-one".

Divisors: 1 17291 835141 14440423031