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13090454 = 2134091231
BaseRepresentation
bin110001111011…
…111010010110
3220122001201122
4301323322112
511322343304
61144323542
7216160406
oct61737226
926561648
1013090454
117431063
1244735b2
132934440
141a4a806
1512389be
hexc7be96

13090454 has 16 divisors (see below), whose sum is σ = 21215040. Its totient is φ = 6022080.

The previous prime is 13090423. The next prime is 13090457. The reversal of 13090454 is 45409031.

It is a super-2 number, since 2×130904542 = 342719971852232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13090457) 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, 10019 + ... + 11249.

It is an arithmetic number, because the mean of its divisors is an integer number (1325940).

Almost surely, 213090454 is an apocalyptic number.

13090454 is a deficient number, since it is larger than the sum of its proper divisors (8124586).

13090454 is a wasteful number, since it uses less digits than its factorization.

13090454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13090454 is about 3618.0732441453. The cubic root of 13090454 is about 235.6775616756.

Adding to 13090454 its reverse (45409031), we get a palindrome (58499485).

The spelling of 13090454 in words is "thirteen million, ninety thousand, four hundred fifty-four".

Divisors: 1 2 13 26 409 818 1231 2462 5317 10634 16003 32006 503479 1006958 6545227 13090454