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13456429 = 72475843
BaseRepresentation
bin110011010101…
…010000101101
3221022122202021
4303111100231
511421101204
61200230141
7222243400
oct63252055
927278667
1013456429
117661018
12460b351
132a31bac
141b03d37
1512ac154
hexcd542d

13456429 has 12 divisors (see below), whose sum is σ = 15989184. Its totient is φ = 11286744.

The previous prime is 13456363. The next prime is 13456439. The reversal of 13456429 is 92465431.

It is a happy number.

13456429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13456429 - 29 = 13455917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13456394 and 13456403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13456439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619 + ... + 5224.

It is an arithmetic number, because the mean of its divisors is an integer number (1332432).

Almost surely, 213456429 is an apocalyptic number.

It is an amenable number.

13456429 is a deficient number, since it is larger than the sum of its proper divisors (2532755).

13456429 is an equidigital number, since it uses as much as digits as its factorization.

13456429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904 (or 5897 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 13456429 is about 3668.3005602050. The cubic root of 13456429 is about 237.8537163354.

The spelling of 13456429 in words is "thirteen million, four hundred fifty-six thousand, four hundred twenty-nine".

Divisors: 1 7 47 49 329 2303 5843 40901 274621 286307 1922347 13456429