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13501 = 23587
BaseRepresentation
bin11010010111101
3200112001
43102331
5413001
6142301
754235
oct32275
920461
1013501
11a164
127991
1361b7
144cc5
154001
hex34bd

13501 has 4 divisors (see below), whose sum is σ = 14112. Its totient is φ = 12892.

The previous prime is 13499. The next prime is 13513. The reversal of 13501 is 10531.

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 13501 - 21 = 13499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13591) 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, 271 + ... + 316.

It is an arithmetic number, because the mean of its divisors is an integer number (3528).

213501 is an apocalyptic number.

It is an amenable number.

13501 is a deficient number, since it is larger than the sum of its proper divisors (611).

13501 is an equidigital number, since it uses as much as digits as its factorization.

13501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 13501 is about 116.1938036214. The cubic root of 13501 is about 23.8116036913.

The spelling of 13501 in words is "thirteen thousand, five hundred one".

Divisors: 1 23 587 13501