Search a number
-
+
19101 = 36367
BaseRepresentation
bin100101010011101
3222012110
410222131
51102401
6224233
7106455
oct45235
928173
1019101
1113395
12b079
138904
146d65
1559d6
hex4a9d

19101 has 4 divisors (see below), whose sum is σ = 25472. Its totient is φ = 12732.

The previous prime is 19087. The next prime is 19121. The reversal of 19101 is 10191.

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 not a de Polignac number, because 19101 - 25 = 19069 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19121) 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, 3181 + ... + 3186.

It is an arithmetic number, because the mean of its divisors is an integer number (6368).

219101 is an apocalyptic number.

It is an amenable number.

19101 is a deficient number, since it is larger than the sum of its proper divisors (6371).

19101 is an equidigital number, since it uses as much as digits as its factorization.

19101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 19101 is about 138.2063674365. The cubic root of 19101 is about 26.7312151577.

Adding to 19101 its reverse (10191), we get a palindrome (29292).

It can be divided in two parts, 19 and 101, that added together give a triangular number (120 = T15).

The spelling of 19101 in words is "nineteen thousand, one hundred one".

Divisors: 1 3 6367 19101