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13678414 = 26839207
BaseRepresentation
bin110100001011…
…011101001110
3221201221020221
4310023131032
512000202124
61205101554
7224156521
oct64133516
927657227
1013678414
1177a2882
1246b78ba
132aabc49
141b60bb8
151302ce4
hexd0b74e

13678414 has 4 divisors (see below), whose sum is σ = 20517624. Its totient is φ = 6839206.

The previous prime is 13678411. The next prime is 13678417. The reversal of 13678414 is 41487631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41487631 = 60169031.

It is an interprime number because it is at equal distance from previous prime (13678411) and next prime (13678417).

It is a self number, because there is not a number n which added to its sum of digits gives 13678414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13678411) 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 as a sum of consecutive naturals, namely, 3419602 + ... + 3419605.

It is an arithmetic number, because the mean of its divisors is an integer number (5129406).

Almost surely, 213678414 is an apocalyptic number.

13678414 is a deficient number, since it is larger than the sum of its proper divisors (6839210).

13678414 is an equidigital number, since it uses as much as digits as its factorization.

13678414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839209.

The product of its digits is 16128, while the sum is 34.

The square root of 13678414 is about 3698.4339929219. The cubic root of 13678414 is about 239.1545133919.

The spelling of 13678414 in words is "thirteen million, six hundred seventy-eight thousand, four hundred fourteen".

Divisors: 1 2 6839207 13678414