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13455941 = 109123449
BaseRepresentation
bin110011010101…
…001001000101
3221022122002012
4303111021011
511421042231
61200224005
7222242102
oct63251105
927278065
1013455941
117660714
12460b005
132a318c5
141b03aa9
1512abe2b
hexcd5245

13455941 has 4 divisors (see below), whose sum is σ = 13579500. Its totient is φ = 13332384.

The previous prime is 13455931. The next prime is 13455979. The reversal of 13455941 is 14955431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14955431 = 61245171.

It can be written as a sum of positive squares in 2 ways, for example, as 8850625 + 4605316 = 2975^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 13455941 - 218 = 13193797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13455898 and 13455907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13455931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61616 + ... + 61833.

It is an arithmetic number, because the mean of its divisors is an integer number (3394875).

Almost surely, 213455941 is an apocalyptic number.

It is an amenable number.

13455941 is a deficient number, since it is larger than the sum of its proper divisors (123559).

13455941 is a wasteful number, since it uses less digits than its factorization.

13455941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123558.

The product of its digits is 10800, while the sum is 32.

The square root of 13455941 is about 3668.2340437873. The cubic root of 13455941 is about 237.8508410303.

The spelling of 13455941 in words is "thirteen million, four hundred fifty-five thousand, nine hundred forty-one".

Divisors: 1 109 123449 13455941