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13936469 = 67792633
BaseRepresentation
bin110101001010…
…011101010101
3222020001020112
4311022131111
512031431334
61214412405
7226313051
oct65123525
928201215
1013936469
117959748
124801105
132b6c541
141bcac61
1513544ce
hexd4a755

13936469 has 8 divisors (see below), whose sum is σ = 14328960. Its totient is φ = 13549536.

The previous prime is 13936463. The next prime is 13936471. The reversal of 13936469 is 96463931.

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

It is a cyclic number.

It is not a de Polignac number, because 13936469 - 216 = 13870933 is a prime.

It is a super-2 number, since 2×139364692 = 388450336375922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13936463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3977 + ... + 6609.

It is an arithmetic number, because the mean of its divisors is an integer number (1791120).

Almost surely, 213936469 is an apocalyptic number.

It is an amenable number.

13936469 is a deficient number, since it is larger than the sum of its proper divisors (392491).

13936469 is an equidigital number, since it uses as much as digits as its factorization.

13936469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779.

The product of its digits is 104976, while the sum is 41.

The square root of 13936469 is about 3733.1580464802. The cubic root of 13936469 is about 240.6491051131.

The spelling of 13936469 in words is "thirteen million, nine hundred thirty-six thousand, four hundred sixty-nine".

Divisors: 1 67 79 2633 5293 176411 208007 13936469