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13679042 = 213526117
BaseRepresentation
bin110100001011…
…100111000010
3221201222010012
4310023213002
512000212132
61205104522
7224161406
oct64134702
927658105
1013679042
1177a32a3
1246b8142
132aac310
141b61106
1513030b2
hexd0b9c2

13679042 has 8 divisors (see below), whose sum is σ = 22096956. Its totient is φ = 6313392.

The previous prime is 13679041. The next prime is 13679047. The reversal of 13679042 is 24097631.

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 1852321 = 3439^2 + 1361^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13679041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263033 + ... + 263084.

Almost surely, 213679042 is an apocalyptic number.

13679042 is a deficient number, since it is larger than the sum of its proper divisors (8417914).

13679042 is a wasteful number, since it uses less digits than its factorization.

13679042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526132.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 13679042 is about 3698.5188927461. The cubic root of 13679042 is about 239.1581733371.

The spelling of 13679042 in words is "thirteen million, six hundred seventy-nine thousand, forty-two".

Divisors: 1 2 13 26 526117 1052234 6839521 13679042