Search a number
-
+
19120492 = 225390191
BaseRepresentation
bin100100011110…
…0000101101100
31022222102101101
41020330011230
514343323432
61521452444
7321343606
oct110740554
938872341
1019120492
11a87a566
1264a1124
133c66001
14277a176
151a2a4e7
hex123c16c

19120492 has 12 divisors (see below), whose sum is σ = 34092576. Its totient is φ = 9379760.

The previous prime is 19120487. The next prime is 19120499. The reversal of 19120492 is 29402191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19120492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19120499) by changing a digit.

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, 44884 + ... + 45307.

It is an arithmetic number, because the mean of its divisors is an integer number (2841048).

Almost surely, 219120492 is an apocalyptic number.

It is an amenable number.

19120492 is a deficient number, since it is larger than the sum of its proper divisors (14972084).

19120492 is a wasteful number, since it uses less digits than its factorization.

19120492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90248 (or 90246 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 19120492 is about 4372.6984803437. The cubic root of 19120492 is about 267.4030486867.

The spelling of 19120492 in words is "nineteen million, one hundred twenty thousand, four hundred ninety-two".

Divisors: 1 2 4 53 106 212 90191 180382 360764 4780123 9560246 19120492