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1331112223 = 71711185817
BaseRepresentation
bin100111101010111…
…0010100100011111
310102202201111200201
41033111302210133
510211231042343
6340030204331
744662160440
oct11725624437
93382644621
101331112223
11623418351
123119536a7
13182a0c28c
14c8add2c7
157bcd894d
hex4f57291f

1331112223 has 8 divisors (see below), whose sum is σ = 1610757792. Its totient is φ = 1073838336.

The previous prime is 1331112221. The next prime is 1331112227. The reversal of 1331112223 is 3222111331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331112223 - 21 = 1331112221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331112223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5592790 + ... + 5593027.

It is an arithmetic number, because the mean of its divisors is an integer number (201344724).

Almost surely, 21331112223 is an apocalyptic number.

1331112223 is a deficient number, since it is larger than the sum of its proper divisors (279645569).

1331112223 is a wasteful number, since it uses less digits than its factorization.

1331112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11185841.

The product of its digits is 216, while the sum is 19.

The square root of 1331112223 is about 36484.4106845650. The cubic root of 1331112223 is about 1100.0309145582.

Adding to 1331112223 its reverse (3222111331), we get a palindrome (4553223554).

The spelling of 1331112223 in words is "one billion, three hundred thirty-one million, one hundred twelve thousand, two hundred twenty-three".

Divisors: 1 7 17 119 11185817 78300719 190158889 1331112223