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14231541661 = 21211670951
BaseRepresentation
bin11010100000100010…
…00001011110011101
31100201211011020000121
431100101001132131
5213121233313121
610312103154541
71012446052051
oct152021013635
940654136017
1014231541661
116043374987
122912145a51
13145a58aa8c
14990149c61
1558461d141
hex35044179d

14231541661 has 4 divisors (see below), whose sum is σ = 14232233824. Its totient is φ = 14230849500.

The previous prime is 14231541647. The next prime is 14231541683. The reversal of 14231541661 is 16614513241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16614513241 = 43321383521.

It is a cyclic number.

It is not a de Polignac number, because 14231541661 - 25 = 14231541629 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 (14231541691) 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, 314265 + ... + 356686.

It is an arithmetic number, because the mean of its divisors is an integer number (3558058456).

Almost surely, 214231541661 is an apocalyptic number.

It is an amenable number.

14231541661 is a deficient number, since it is larger than the sum of its proper divisors (692163).

14231541661 is an equidigital number, since it uses as much as digits as its factorization.

14231541661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692162.

The product of its digits is 17280, while the sum is 34.

The spelling of 14231541661 in words is "fourteen billion, two hundred thirty-one million, five hundred forty-one thousand, six hundred sixty-one".

Divisors: 1 21211 670951 14231541661