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11532223231 = 311009368689
BaseRepresentation
bin10101011110101111…
…11100001011111111
31002202200220122020221
422233113330023333
5142104222120411
65144155322211
7555531165034
oct125727741377
932680818227
1011532223231
114988704001
12229a150367
13111a282639
147b585338b
15477670071
hex2af5fc2ff

11532223231 has 8 divisors (see below), whose sum is σ = 11916060800. Its totient is φ = 11149125120.

The previous prime is 11532223187. The next prime is 11532223237. The reversal of 11532223231 is 13232223511.

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 11532223231 - 215 = 11532190463 is a prime.

It is a super-2 number, since 2×115322232312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11532223196 and 11532223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11532223237) 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, 153066 + ... + 215623.

It is an arithmetic number, because the mean of its divisors is an integer number (1489507600).

Almost surely, 211532223231 is an apocalyptic number.

11532223231 is a deficient number, since it is larger than the sum of its proper divisors (383837569).

11532223231 is a wasteful number, since it uses less digits than its factorization.

11532223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369729.

The product of its digits is 2160, while the sum is 25.

Adding to 11532223231 its reverse (13232223511), we get a palindrome (24764446742).

The spelling of 11532223231 in words is "eleven billion, five hundred thirty-two million, two hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 31 1009 31279 368689 11429359 372007201 11532223231