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13675881 = 34558627
BaseRepresentation
bin110100001010…
…110101101001
3221201210210010
4310022311221
512000112011
61205042133
7224146242
oct64126551
927653703
1013675881
1177a098a
1246b6349
132aaaa4b
141b5dcc9
1513021a6
hexd0ad69

13675881 has 4 divisors (see below), whose sum is σ = 18234512. Its totient is φ = 9117252.

The previous prime is 13675873. The next prime is 13675889. The reversal of 13675881 is 18857631.

13675881 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (13675873) and next prime (13675889).

It is not a de Polignac number, because 13675881 - 23 = 13675873 is a prime.

It is a super-2 number, since 2×136758812 = 374059442252322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13675889) 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, 2279311 + ... + 2279316.

It is an arithmetic number, because the mean of its divisors is an integer number (4558628).

Almost surely, 213675881 is an apocalyptic number.

It is an amenable number.

13675881 is a deficient number, since it is larger than the sum of its proper divisors (4558631).

13675881 is an equidigital number, since it uses as much as digits as its factorization.

13675881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558630.

The product of its digits is 40320, while the sum is 39.

The square root of 13675881 is about 3698.0915348325. The cubic root of 13675881 is about 239.1397500872.

The spelling of 13675881 in words is "thirteen million, six hundred seventy-five thousand, eight hundred eighty-one".

Divisors: 1 3 4558627 13675881