Search a number
-
+
22312230231 = 365911285903
BaseRepresentation
bin10100110001111010…
…011001110101010111
32010120222101201211110
4110301322121311113
5331143412331411
614130004310103
71416626553624
oct246172316527
963528351743
1022312230231
11950a7438a5
1243a83a2333
1321477427c5
14111941934b
158a8c562a6
hex531e99d57

22312230231 has 8 divisors (see below), whose sum is σ = 29794786560. Its totient is φ = 14852247032.

The previous prime is 22312230229. The next prime is 22312230247. The reversal of 22312230231 is 13203221322.

It is a happy number.

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 22312230231 - 21 = 22312230229 is a prime.

It is a super-3 number, since 3×223122302313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 22312230198 and 22312230207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312230211) 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, 5640975 + ... + 5644928.

It is an arithmetic number, because the mean of its divisors is an integer number (3724348320).

Almost surely, 222312230231 is an apocalyptic number.

22312230231 is a deficient number, since it is larger than the sum of its proper divisors (7482556329).

22312230231 is a wasteful number, since it uses less digits than its factorization.

22312230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11286565.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22312230231 its reverse (13203221322), we get a palindrome (35515451553).

The spelling of 22312230231 in words is "twenty-two billion, three hundred twelve million, two hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 659 1977 11285903 33857709 7437410077 22312230231