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14120340431 = 28051503381
BaseRepresentation
bin11010010011010001…
…10100101111001111
31100110001220121121112
431021220310233033
5212404301343211
610253051522235
71006625625161
oct151150645717
940401817545
1014120340431
115a9662283a
1228a0a5937b
131440524a32
1497d480931
155799a488b
hex349a34bcf

14120340431 has 4 divisors (see below), whose sum is σ = 14120871864. Its totient is φ = 14119809000.

The previous prime is 14120340337. The next prime is 14120340449. The reversal of 14120340431 is 13404302141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13404302141 = 109122975249.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14120340431 is a prime.

It is a super-2 number, since 2×141203404312 (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 = 14120340397 and 14120340406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14120340491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223640 + ... + 279741.

It is an arithmetic number, because the mean of its divisors is an integer number (3530217966).

Almost surely, 214120340431 is an apocalyptic number.

14120340431 is a deficient number, since it is larger than the sum of its proper divisors (531433).

14120340431 is an equidigital number, since it uses as much as digits as its factorization.

14120340431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531432.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 14120340431 its reverse (13404302141), we get a palindrome (27524642572).

The spelling of 14120340431 in words is "fourteen billion, one hundred twenty million, three hundred forty thousand, four hundred thirty-one".

Divisors: 1 28051 503381 14120340431