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104431 = 176143
BaseRepresentation
bin11001011111101111
312022020211
4121133233
511320211
62123251
7613315
oct313757
9168224
10104431
1171508
1250527
13386c2
142a0b5
1520e21
hex197ef

104431 has 4 divisors (see below), whose sum is σ = 110592. Its totient is φ = 98272.

The previous prime is 104417. The next prime is 104459. The reversal of 104431 is 134401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104431 - 25 = 104399 is a prime.

It is a super-2 number, since 2×1044312 = 21811667522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055 + ... + 3088.

It is an arithmetic number, because the mean of its divisors is an integer number (27648).

2104431 is an apocalyptic number.

104431 is a deficient number, since it is larger than the sum of its proper divisors (6161).

104431 is an equidigital number, since it uses as much as digits as its factorization.

104431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 104431 is about 323.1578561632. The cubic root of 104431 is about 47.0915673768.

Adding to 104431 its reverse (134401), we get a palindrome (238832).

It can be divided in two parts, 104 and 431, that added together give a palindrome (535).

The spelling of 104431 in words is "one hundred four thousand, four hundred thirty-one".

Divisors: 1 17 6143 104431