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13999753 = 26353231
BaseRepresentation
bin110101011001…
…111010001001
3222100021001101
4311121322021
512040443003
61220021401
7226665415
oct65317211
928307041
1013999753
1179a2249
124831861
132b922a1
141c05d45
15136811d
hexd59e89

13999753 has 4 divisors (see below), whose sum is σ = 14053248. Its totient is φ = 13946260.

The previous prime is 13999747. The next prime is 13999757. The reversal of 13999753 is 35799931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35799931 = 320311177.

It is a cyclic number.

It is not a de Polignac number, because 13999753 - 217 = 13868681 is a prime.

It is a super-2 number, since 2×139997532 = 391986168122018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13999757) 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 3 ways as a sum of consecutive naturals, for example, 26353 + ... + 26878.

It is an arithmetic number, because the mean of its divisors is an integer number (3513312).

Almost surely, 213999753 is an apocalyptic number.

It is an amenable number.

13999753 is a deficient number, since it is larger than the sum of its proper divisors (53495).

13999753 is an equidigital number, since it uses as much as digits as its factorization.

13999753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53494.

The product of its digits is 229635, while the sum is 46.

The square root of 13999753 is about 3741.6243798650. The cubic root of 13999753 is about 241.0128090160.

The spelling of 13999753 in words is "thirteen million, nine hundred ninety-nine thousand, seven hundred fifty-three".

Divisors: 1 263 53231 13999753