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13995717 = 321412179
BaseRepresentation
bin110101011000…
…111011000101
3222100001111220
4311120323011
512040330332
61215550553
7226650561
oct65307305
928301456
1013995717
11799a20a
12482b459
132b904b8
141c046a1
151366d2c
hexd58ec5

13995717 has 8 divisors (see below), whose sum is σ = 18678240. Its totient is φ = 9321840.

The previous prime is 13995701. The next prime is 13995721. The reversal of 13995717 is 71759931.

13995717 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13995717 - 24 = 13995701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13995727) 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, 5334 + ... + 7512.

It is an arithmetic number, because the mean of its divisors is an integer number (2334780).

Almost surely, 213995717 is an apocalyptic number.

It is an amenable number.

13995717 is a deficient number, since it is larger than the sum of its proper divisors (4682523).

13995717 is a wasteful number, since it uses less digits than its factorization.

13995717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its digits is 59535, while the sum is 42.

The square root of 13995717 is about 3741.0850030439. The cubic root of 13995717 is about 240.9896461981.

The spelling of 13995717 in words is "thirteen million, nine hundred ninety-five thousand, seven hundred seventeen".

Divisors: 1 3 2141 2179 6423 6537 4665239 13995717