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14556386881 = 16389302987
BaseRepresentation
bin11011000111010000…
…01101011001000001
31101120110102001220001
431203220031121001
5214302413340011
610404225520001
71023502150501
oct154350153101
941513361801
1014556386881
11619a778a03
1229a2aa3001
1314ac97749a
149c1349a01
155a2dd87c1
hex363a0d641

14556386881 has 4 divisors (see below), whose sum is σ = 14645690032. Its totient is φ = 14467083732.

The previous prime is 14556386869. The next prime is 14556386891. The reversal of 14556386881 is 18868365541.

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: 18868365541 = 53356006897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14556386881 is a prime.

It is a super-2 number, since 2×145563868812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14556386821) 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, 44651331 + ... + 44651656.

It is an arithmetic number, because the mean of its divisors is an integer number (3661422508).

Almost surely, 214556386881 is an apocalyptic number.

It is an amenable number.

14556386881 is a deficient number, since it is larger than the sum of its proper divisors (89303151).

14556386881 is an equidigital number, since it uses as much as digits as its factorization.

14556386881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89303150.

The product of its digits is 5529600, while the sum is 55.

The spelling of 14556386881 in words is "fourteen billion, five hundred fifty-six million, three hundred eighty-six thousand, eight hundred eighty-one".

Divisors: 1 163 89302987 14556386881