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12235389 = 38574759
BaseRepresentation
bin101110101011…
…001001111101
3212000121210120
4232223021331
511113013024
61114125153
7205666455
oct56531175
925017716
1012235389
1169a76a1
1241207b9
1326c519a
1418a6d65
15111a479
hexbab27d

12235389 has 8 divisors (see below), whose sum is σ = 16336320. Its totient is φ = 8145696.

The previous prime is 12235381. The next prime is 12235397. The reversal of 12235389 is 98353221.

12235389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12235381) and next prime (12235397).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12235389 - 23 = 12235381 is a prime.

It is a super-3 number, since 3×122353893 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235381) 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, 192 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (2042040).

Almost surely, 212235389 is an apocalyptic number.

It is an amenable number.

12235389 is a deficient number, since it is larger than the sum of its proper divisors (4100931).

12235389 is an equidigital number, since it uses as much as digits as its factorization.

12235389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619.

The product of its digits is 12960, while the sum is 33.

The square root of 12235389 is about 3497.9120915197. The cubic root of 12235389 is about 230.4301276852.

It can be divided in two parts, 122 and 35389, that added together give a triangular number (35511 = T266).

The spelling of 12235389 in words is "twelve million, two hundred thirty-five thousand, three hundred eighty-nine".

Divisors: 1 3 857 2571 4759 14277 4078463 12235389