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13454437 = 412291433
BaseRepresentation
bin110011010100…
…110001100101
3221022120000111
4303110301211
511421020222
61200213021
7222234523
oct63246145
927276014
1013454437
11765a577
12460a171
132a31009
141b03313
1512ab777
hexcd4c65

13454437 has 8 divisors (see below), whose sum is σ = 13852440. Its totient is φ = 13059840.

The previous prime is 13454423. The next prime is 13454443. The reversal of 13454437 is 73445431.

13454437 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3682561 + 9771876 = 1919^2 + 3126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13454437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13454399 and 13454408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13454447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8673 + ... + 10105.

It is an arithmetic number, because the mean of its divisors is an integer number (1731555).

Almost surely, 213454437 is an apocalyptic number.

It is an amenable number.

13454437 is a deficient number, since it is larger than the sum of its proper divisors (398003).

13454437 is a wasteful number, since it uses less digits than its factorization.

13454437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703.

The product of its digits is 20160, while the sum is 31.

The square root of 13454437 is about 3668.0290347815. The cubic root of 13454437 is about 237.8419789970.

Adding to 13454437 its reverse (73445431), we get a palindrome (86899868).

The spelling of 13454437 in words is "thirteen million, four hundred fifty-four thousand, four hundred thirty-seven".

Divisors: 1 41 229 1433 9389 58753 328157 13454437