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2102231223 = 32233581247
BaseRepresentation
bin111110101001101…
…1000000010110111
312102111201102002200
41331103120002313
513301132344343
6544334035543
7103044446001
oct17523300267
95374642080
102102231223
11989722484
124a8048bb3
132766bc601
1415d2ab371
15c48584d3
hex7d4d80b7

2102231223 has 6 divisors (see below), whose sum is σ = 3036556224. Its totient is φ = 1401487476.

The previous prime is 2102231177. The next prime is 2102231233. The reversal of 2102231223 is 3221322012.

2102231223 is a `hidden beast` number, since 210 + 2 + 231 + 223 = 666.

It is a de Polignac number, because none of the positive numbers 2k-2102231223 is a prime.

It is a super-2 number, since 2×21022312232 = 8838752229912151458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102231196 and 2102231205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102231233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116790615 + ... + 116790632.

It is an arithmetic number, because the mean of its divisors is an integer number (506092704).

Almost surely, 22102231223 is an apocalyptic number.

2102231223 is a deficient number, since it is larger than the sum of its proper divisors (934325001).

2102231223 is a wasteful number, since it uses less digits than its factorization.

2102231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233581253 (or 233581250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2102231223 is about 45850.0951253103. The cubic root of 2102231223 is about 1281.0325374240.

Adding to 2102231223 its reverse (3221322012), we get a palindrome (5323553235).

The spelling of 2102231223 in words is "two billion, one hundred two million, two hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 3 9 233581247 700743741 2102231223