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13464813 = 34488271
BaseRepresentation
bin110011010111…
…010011101101
3221100002020210
4303113103231
511421333223
61200333033
7222310005
oct63272355
927302223
1013464813
11766734a
124614179
132a3595b
141b07005
1512ae893
hexcd74ed

13464813 has 4 divisors (see below), whose sum is σ = 17953088. Its totient is φ = 8976540.

The previous prime is 13464797. The next prime is 13464817. The reversal of 13464813 is 31846431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31846431 = 310615477.

It is not a de Polignac number, because 13464813 - 24 = 13464797 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 (13464817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244133 + ... + 2244138.

It is an arithmetic number, because the mean of its divisors is an integer number (4488272).

Almost surely, 213464813 is an apocalyptic number.

It is an amenable number.

13464813 is a deficient number, since it is larger than the sum of its proper divisors (4488275).

13464813 is an equidigital number, since it uses as much as digits as its factorization.

13464813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488274.

The product of its digits is 6912, while the sum is 30.

The square root of 13464813 is about 3669.4431457648. The cubic root of 13464813 is about 237.9031041670.

The spelling of 13464813 in words is "thirteen million, four hundred sixty-four thousand, eight hundred thirteen".

Divisors: 1 3 4488271 13464813