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13834919 = 75233779
BaseRepresentation
bin110100110001…
…101010100111
3222000212221102
4310301222213
512020204134
61212310315
7225411020
oct64615247
928025842
1013834919
11789a41a
12477239b
132b35257
141ba1c47
15133437e
hexd31aa7

13834919 has 8 divisors (see below), whose sum is σ = 15845760. Its totient is φ = 11832696.

The previous prime is 13834871. The next prime is 13834921. The reversal of 13834919 is 91943831.

It is a happy number.

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 13834919 - 216 = 13769383 is a prime.

It is a super-2 number, since 2×138349192 = 382809967473122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13834979) 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, 1772 + ... + 5550.

It is an arithmetic number, because the mean of its divisors is an integer number (1980720).

Almost surely, 213834919 is an apocalyptic number.

13834919 is a deficient number, since it is larger than the sum of its proper divisors (2010841).

13834919 is an equidigital number, since it uses as much as digits as its factorization.

13834919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309.

The product of its digits is 23328, while the sum is 38.

The square root of 13834919 is about 3719.5320942291. The cubic root of 13834919 is about 240.0631720280.

The spelling of 13834919 in words is "thirteen million, eight hundred thirty-four thousand, nine hundred nineteen".

Divisors: 1 7 523 3661 3779 26453 1976417 13834919