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13675839 = 319673581
BaseRepresentation
bin110100001010…
…110100111111
3221201210201120
4310022310333
512000111324
61205042023
7224146152
oct64126477
927653646
1013675839
1177a0951
1246b6313
132aaaa18
141b5dc99
151302179
hexd0ad3f

13675839 has 16 divisors (see below), whose sum is σ = 19486080. Its totient is φ = 8506080.

The previous prime is 13675811. The next prime is 13675841. The reversal of 13675839 is 93857631.

It is not a de Polignac number, because 13675839 - 28 = 13675583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13675839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13675859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029 + ... + 5609.

It is an arithmetic number, because the mean of its divisors is an integer number (1217880).

Almost surely, 213675839 is an apocalyptic number.

13675839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13675839 is a deficient number, since it is larger than the sum of its proper divisors (5810241).

13675839 is a wasteful number, since it uses less digits than its factorization.

13675839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670.

The product of its digits is 136080, while the sum is 42.

The square root of 13675839 is about 3698.0858562235. The cubic root of 13675839 is about 239.1395052796.

The spelling of 13675839 in words is "thirteen million, six hundred seventy-five thousand, eight hundred thirty-nine".

Divisors: 1 3 19 57 67 201 1273 3581 3819 10743 68039 204117 239927 719781 4558613 13675839