Search a number
-
+
111027001 = 499222499
BaseRepresentation
bin1101001111000…
…10001100111001
321201220202102011
412213202030321
5211410331001
615003405521
72515466611
oct647421471
9251822364
10111027001
1157743258
12312238a1
131a004967
1410a61a41
159b31d51
hex69e2339

111027001 has 4 divisors (see below), whose sum is σ = 111250000. Its totient is φ = 110804004.

The previous prime is 111026987. The next prime is 111027023. The reversal of 111027001 is 100720111.

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: 100720111 = 106994219.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111027001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111027041) 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, 110751 + ... + 111748.

It is an arithmetic number, because the mean of its divisors is an integer number (27812500).

Almost surely, 2111027001 is an apocalyptic number.

It is an amenable number.

111027001 is a deficient number, since it is larger than the sum of its proper divisors (222999).

111027001 is an equidigital number, since it uses as much as digits as its factorization.

111027001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222998.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 111027001 is about 10536.9350856879. The cubic root of 111027001 is about 480.6285183750.

Adding to 111027001 its reverse (100720111), we get a palindrome (211747112).

The spelling of 111027001 in words is "one hundred eleven million, twenty-seven thousand, one".

Divisors: 1 499 222499 111027001