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13454897 = 33733989
BaseRepresentation
bin110011010100…
…111000110001
3221022120122112
4303110320301
511421024042
61200215105
7222236051
oct63247061
927276575
1013454897
11765a955
12460a495
132a312a1
141b03561
1512ab982
hexcd4e31

13454897 has 4 divisors (see below), whose sum is σ = 13462260. Its totient is φ = 13447536.

The previous prime is 13454887. The next prime is 13454921. The reversal of 13454897 is 79845431.

13454897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79845431 = 480116631.

It can be written as a sum of positive squares in 2 ways, for example, as 10817521 + 2637376 = 3289^2 + 1624^2 .

It is a cyclic number.

It is not a de Polignac number, because 13454897 - 216 = 13389361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13454867) 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, 1379 + ... + 5367.

It is an arithmetic number, because the mean of its divisors is an integer number (3365565).

Almost surely, 213454897 is an apocalyptic number.

It is an amenable number.

13454897 is a deficient number, since it is larger than the sum of its proper divisors (7363).

13454897 is an equidigital number, since it uses as much as digits as its factorization.

13454897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7362.

The product of its digits is 120960, while the sum is 41.

The square root of 13454897 is about 3668.0917382203. The cubic root of 13454897 is about 237.8446895294.

The spelling of 13454897 in words is "thirteen million, four hundred fifty-four thousand, eight hundred ninety-seven".

Divisors: 1 3373 3989 13454897