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11231210404 = 2283157215471
BaseRepresentation
bin10100111010110111…
…01010101110100100
31001222201111121021201
422131123222232210
5141000142213104
65054243452244
7545214466441
oct123533525644
931881447251
1011231210404
1148437a8677
122215387084
13109cabb83b
147878989c8
1545b0110a4
hex29d6eaba4

11231210404 has 24 divisors (see below), whose sum is σ = 20018210688. Its totient is φ = 5512584480.

The previous prime is 11231210371. The next prime is 11231210407. The reversal of 11231210404 is 40401213211.

It is a super-2 number, since 2×112312104042 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231210407) 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 7 ways as a sum of consecutive naturals, for example, 55612 + ... + 159859.

It is an arithmetic number, because the mean of its divisors is an integer number (834092112).

Almost surely, 211231210404 is an apocalyptic number.

It is an amenable number.

11231210404 is a deficient number, since it is larger than the sum of its proper divisors (8787000284).

11231210404 is a wasteful number, since it uses less digits than its factorization.

11231210404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215715 (or 215713 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11231210404 its reverse (40401213211), we get a palindrome (51632423615).

The spelling of 11231210404 in words is "eleven billion, two hundred thirty-one million, two hundred ten thousand, four hundred four".

Divisors: 1 2 4 83 157 166 314 332 628 13031 26062 52124 215471 430942 861884 17884093 33828947 35768186 67657894 71536372 135315788 2807802601 5615605202 11231210404