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105697 = 195563
BaseRepresentation
bin11001110011100001
312100222201
4121303201
511340242
62133201
7620104
oct316341
9170881
10105697
1172459
1251201
1339157
142a73b
15214b7
hex19ce1

105697 has 4 divisors (see below), whose sum is σ = 111280. Its totient is φ = 100116.

The previous prime is 105691. The next prime is 105701. The reversal of 105697 is 796501.

It is a happy number.

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: 796501 = 1746853.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105697 is a prime.

It is a super-2 number, since 2×1056972 = 22343711618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105691) 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, 2763 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (27820).

2105697 is an apocalyptic number.

It is an amenable number.

105697 is a deficient number, since it is larger than the sum of its proper divisors (5583).

105697 is an equidigital number, since it uses as much as digits as its factorization.

105697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 105697 is about 325.1107503606. The cubic root of 105697 is about 47.2810980111.

The spelling of 105697 in words is "one hundred five thousand, six hundred ninety-seven".

Divisors: 1 19 5563 105697