Search a number
-
+
12190223 = 31461853
BaseRepresentation
bin101110100000…
…001000001111
3211221022211202
4232200020033
511110041343
61113140115
7205421003
oct56401017
924838752
1012190223
116976771
1240ba63b
1326aa766
141894703
15110bdb8
hexba020f

12190223 has 8 divisors (see below), whose sum is σ = 12625536. Its totient is φ = 11757600.

The previous prime is 12190219. The next prime is 12190231. The reversal of 12190223 is 32209121.

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 12190223 - 22 = 12190219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12190195 and 12190204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100223) 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, 13865 + ... + 14717.

It is an arithmetic number, because the mean of its divisors is an integer number (1578192).

Almost surely, 212190223 is an apocalyptic number.

12190223 is a deficient number, since it is larger than the sum of its proper divisors (435313).

12190223 is an equidigital number, since it uses as much as digits as its factorization.

12190223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12190223 is about 3491.4499853213. The cubic root of 12190223 is about 230.1462397007.

Adding to 12190223 its reverse (32209121), we get a palindrome (44399344).

The spelling of 12190223 in words is "twelve million, one hundred ninety thousand, two hundred twenty-three".

Divisors: 1 31 461 853 14291 26443 393233 12190223