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13842679 = 24475657
BaseRepresentation
bin110100110011…
…100011110111
3222001021120211
4310303203313
512020431204
61212410251
7225442444
oct64634367
928037524
1013842679
1178a5234
124776987
132b38946
141ba49cb
151336804
hexd338f7

13842679 has 4 divisors (see below), whose sum is σ = 13850784. Its totient is φ = 13834576.

The previous prime is 13842677. The next prime is 13842683. The reversal of 13842679 is 97624831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97624831 = 195138149.

It is a cyclic number.

It is not a de Polignac number, because 13842679 - 21 = 13842677 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13842677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (3462696).

Almost surely, 213842679 is an apocalyptic number.

13842679 is a deficient number, since it is larger than the sum of its proper divisors (8105).

13842679 is an equidigital number, since it uses as much as digits as its factorization.

13842679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104.

The product of its digits is 72576, while the sum is 40.

The square root of 13842679 is about 3720.5750899559. The cubic root of 13842679 is about 240.1080474148.

The spelling of 13842679 in words is "thirteen million, eight hundred forty-two thousand, six hundred seventy-nine".

Divisors: 1 2447 5657 13842679