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13861677 = 34620559
BaseRepresentation
bin110100111000…
…001100101101
3222002020122110
4310320030231
512022033202
61213034233
7225552024
oct64701455
928066573
1013861677
117908535
124785979
132b4449b
141bab8bb
15133c26c
hexd3832d

13861677 has 4 divisors (see below), whose sum is σ = 18482240. Its totient is φ = 9241116.

The previous prime is 13861667. The next prime is 13861691. The reversal of 13861677 is 77616831.

13861677 is digitally balanced in base 2, because in such base 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, and also an emirpimes, since its reverse is a distinct semiprime: 77616831 = 325872277.

It is not a de Polignac number, because 13861677 - 212 = 13857581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861607) 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, 2310277 + ... + 2310282.

It is an arithmetic number, because the mean of its divisors is an integer number (4620560).

Almost surely, 213861677 is an apocalyptic number.

It is an amenable number.

13861677 is a deficient number, since it is larger than the sum of its proper divisors (4620563).

13861677 is an equidigital number, since it uses as much as digits as its factorization.

13861677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620562.

The product of its digits is 42336, while the sum is 39.

The square root of 13861677 is about 3723.1273145032. The cubic root of 13861677 is about 240.2178404078.

The spelling of 13861677 in words is "thirteen million, eight hundred sixty-one thousand, six hundred seventy-seven".

Divisors: 1 3 4620559 13861677