Search a number
-
+
19371084 = 2231614257
BaseRepresentation
bin100100111100…
…1010001001100
31100110011010120
41021321101030
514424333314
61531104540
7323436315
oct111712114
940404116
1019371084
11aa30867
1265a2150
1340230a5
14280360c
151a798a9
hex127944c

19371084 has 12 divisors (see below), whose sum is σ = 45199224. Its totient is φ = 6457024.

The previous prime is 19371073. The next prime is 19371103. The reversal of 19371084 is 48017391.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807117 + ... + 807140.

It is an arithmetic number, because the mean of its divisors is an integer number (3766602).

Almost surely, 219371084 is an apocalyptic number.

It is an amenable number.

19371084 is an abundant number, since it is smaller than the sum of its proper divisors (25828140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19371084 is a wasteful number, since it uses less digits than its factorization.

19371084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614264 (or 1614262 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 19371084 is about 4401.2593652272. The cubic root of 19371084 is about 268.5661714572.

The spelling of 19371084 in words is "nineteen million, three hundred seventy-one thousand, eighty-four".

Divisors: 1 2 3 4 6 12 1614257 3228514 4842771 6457028 9685542 19371084