Search a number
-
+
12230239 = 73747221
BaseRepresentation
bin101110101001…
…111001011111
3212000100201211
4232221321133
511112331424
61114045251
7205645450
oct56517137
925010654
1012230239
1169a383a
124119827
1326c2a38
1418a5127
151118b94
hexba9e5f

12230239 has 8 divisors (see below), whose sum is σ = 14355488. Its totient is φ = 10199520.

The previous prime is 12230233. The next prime is 12230353. The reversal of 12230239 is 93203221.

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 12230239 - 27 = 12230111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230233) 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, 23352 + ... + 23869.

It is an arithmetic number, because the mean of its divisors is an integer number (1794436).

Almost surely, 212230239 is an apocalyptic number.

12230239 is a deficient number, since it is larger than the sum of its proper divisors (2125249).

12230239 is an equidigital number, since it uses as much as digits as its factorization.

12230239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47265.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12230239 is about 3497.1758606052. The cubic root of 12230239 is about 230.3977930179.

The spelling of 12230239 in words is "twelve million, two hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 7 37 259 47221 330547 1747177 12230239