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13431461 = 19706919
BaseRepresentation
bin110011001111…
…001010100101
3221021101111112
4303033022211
511414301321
61155514405
7222110531
oct63171245
927241445
1013431461
11764428a
1245b8a05
132a23714
141ad8bc1
1512a4a5b
hexccf2a5

13431461 has 4 divisors (see below), whose sum is σ = 14138400. Its totient is φ = 12724524.

The previous prime is 13431433. The next prime is 13431497. The reversal of 13431461 is 16413431.

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.

It is a cyclic number.

It is not a de Polignac number, because 13431461 - 210 = 13430437 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 (13431421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353441 + ... + 353478.

It is an arithmetic number, because the mean of its divisors is an integer number (3534600).

Almost surely, 213431461 is an apocalyptic number.

It is an amenable number.

13431461 is a deficient number, since it is larger than the sum of its proper divisors (706939).

13431461 is an equidigital number, since it uses as much as digits as its factorization.

13431461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706938.

The product of its digits is 864, while the sum is 23.

The square root of 13431461 is about 3664.8957693228. The cubic root of 13431461 is about 237.7065151122.

Adding to 13431461 its reverse (16413431), we get a palindrome (29844892).

The spelling of 13431461 in words is "thirteen million, four hundred thirty-one thousand, four hundred sixty-one".

Divisors: 1 19 706919 13431461