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13084531 is a prime number
BaseRepresentation
bin110001111010…
…011101110011
3220121202121021
4301322131303
511322201111
61144240311
7216134215
oct61723563
926552537
1013084531
117427669
124470097
132931835
141a485b5
151236d71
hexc7a773

13084531 has 2 divisors, whose sum is σ = 13084532. Its totient is φ = 13084530.

The previous prime is 13084529. The next prime is 13084549. The reversal of 13084531 is 13548031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13084531 - 21 = 13084529 is a prime.

It is a super-2 number, since 2×130845312 = 342409902979922, which contains 22 as substring.

Together with 13084529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13084496 and 13084505.

It is not a weakly prime, because it can be changed into another prime (13084031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6542265 + 6542266.

It is an arithmetic number, because the mean of its divisors is an integer number (6542266).

Almost surely, 213084531 is an apocalyptic number.

13084531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13084531 is an equidigital number, since it uses as much as digits as its factorization.

13084531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13084531 is about 3617.2546219474. The cubic root of 13084531 is about 235.6420108642.

The spelling of 13084531 in words is "thirteen million, eighty-four thousand, five hundred thirty-one".