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12534455 = 51092211
BaseRepresentation
bin101111110100…
…001010110111
3212120211001002
4233310022313
511202100310
61124353515
7211353413
oct57641267
925524032
1012534455
11709135a
12424589b
13279b34b
141943d43
151178da5
hexbf42b7

12534455 has 12 divisors (see below), whose sum is σ = 15252552. Its totient is φ = 9888480.

The previous prime is 12534443. The next prime is 12534461. The reversal of 12534455 is 55443521.

12534455 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12534455 - 214 = 12518071 is a prime.

It is a super-2 number, since 2×125344552 = 314225124294050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59300 + ... + 59510.

It is an arithmetic number, because the mean of its divisors is an integer number (1271046).

Almost surely, 212534455 is an apocalyptic number.

12534455 is a deficient number, since it is larger than the sum of its proper divisors (2718097).

12534455 is an equidigital number, since it uses as much as digits as its factorization.

12534455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 325 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 12534455 is about 3540.4032256228. The cubic root of 12534455 is about 232.2924806512.

Adding to 12534455 its reverse (55443521), we get a palindrome (67977976).

The spelling of 12534455 in words is "twelve million, five hundred thirty-four thousand, four hundred fifty-five".

Divisors: 1 5 109 211 545 1055 11881 22999 59405 114995 2506891 12534455