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12432253 = 176131193
BaseRepresentation
bin101111011011…
…001101111101
3212101121211211
4233123031331
511140313003
61122244421
7210446431
oct57331575
925347754
1012432253
117021599
1241b6711
132763982
1419189c1
15115896d
hexbdb37d

12432253 has 8 divisors (see below), whose sum is σ = 13196088. Its totient is φ = 11672064.

The previous prime is 12432247. The next prime is 12432257. The reversal of 12432253 is 35223421.

It can be written as a sum of positive squares in 4 ways, for example, as 412164 + 12020089 = 642^2 + 3467^2 .

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

It is not a de Polignac number, because 12432253 - 25 = 12432221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9825 + ... + 11017.

It is an arithmetic number, because the mean of its divisors is an integer number (1649511).

Almost surely, 212432253 is an apocalyptic number.

It is an amenable number.

12432253 is a deficient number, since it is larger than the sum of its proper divisors (763835).

12432253 is a wasteful number, since it uses less digits than its factorization.

12432253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823.

The product of its digits is 1440, while the sum is 22.

The square root of 12432253 is about 3525.9400165062. The cubic root of 12432253 is about 231.6594103162.

Adding to 12432253 its reverse (35223421), we get a palindrome (47655674).

The spelling of 12432253 in words is "twelve million, four hundred thirty-two thousand, two hundred fifty-three".

Divisors: 1 17 613 1193 10421 20281 731309 12432253