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12153423 = 317323417
BaseRepresentation
bin101110010111…
…001001001111
3211212110100210
4232113021033
511102402143
61112253503
7205205502
oct56271117
924773323
1012153423
116951057
1240a1293
132696a99
141885139
151101033
hexb9724f

12153423 has 8 divisors (see below), whose sum is σ = 16298928. Its totient is φ = 8055104.

The previous prime is 12153397. The next prime is 12153451. The reversal of 12153423 is 32435121.

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 12153423 - 26 = 12153359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12153423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153473) 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, 11190 + ... + 12227.

It is an arithmetic number, because the mean of its divisors is an integer number (2037366).

Almost surely, 212153423 is an apocalyptic number.

12153423 is a deficient number, since it is larger than the sum of its proper divisors (4145505).

12153423 is a wasteful number, since it uses less digits than its factorization.

12153423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23593.

The product of its digits is 720, while the sum is 21.

The square root of 12153423 is about 3486.1759852308. The cubic root of 12153423 is about 229.9144168036.

Adding to 12153423 its reverse (32435121), we get a palindrome (44588544).

The spelling of 12153423 in words is "twelve million, one hundred fifty-three thousand, four hundred twenty-three".

Divisors: 1 3 173 519 23417 70251 4051141 12153423