Search a number
-
+
111001103201 = 142977677469
BaseRepresentation
bin110011101100000101…
…1100110101101100001
3101121111212011021210102
41213120023212231201
53304312240300301
6122554310512145
711006465544452
oct1473013465541
9347455137712
10111001103201
114309125782a
121961a065655
13a60ca32271
14553013b129
152d49e45b6b
hex19d82e6b61

111001103201 has 4 divisors (see below), whose sum is σ = 111078782100. Its totient is φ = 110923424304.

The previous prime is 111001103189. The next prime is 111001103207. The reversal of 111001103201 is 102301100111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102301100111 = 714614442873.

It can be written as a sum of positive squares in 2 ways, for example, as 3312117601 + 107688985600 = 57551^2 + 328160^2 .

It is a cyclic number.

It is not a de Polignac number, because 111001103201 - 214 = 111001086817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001103207) 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, 38837306 + ... + 38840163.

It is an arithmetic number, because the mean of its divisors is an integer number (27769695525).

Almost surely, 2111001103201 is an apocalyptic number.

It is an amenable number.

111001103201 is a deficient number, since it is larger than the sum of its proper divisors (77678899).

111001103201 is an equidigital number, since it uses as much as digits as its factorization.

111001103201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77678898.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 111001103201 its reverse (102301100111), we get a palindrome (213302203312).

The spelling of 111001103201 in words is "one hundred eleven billion, one million, one hundred three thousand, two hundred one".

Divisors: 1 1429 77677469 111001103201