Search a number
-
+
19020284 = 225478693
BaseRepresentation
bin100100010001…
…1100111111100
31022210022220222
41020203213330
514332122114
61515400512
7320445503
oct110434774
938708828
1019020284
11a811248
126453138
133c2c50a
14275183a
151a0a98e
hex12239fc

19020284 has 12 divisors (see below), whose sum is σ = 33350184. Its totient is φ = 9491664.

The previous prime is 19020271. The next prime is 19020301. The reversal of 19020284 is 48202091.

It is a congruent number.

It is an unprimeable number.

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, 2159 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (2779182).

Almost surely, 219020284 is an apocalyptic number.

It is an amenable number.

19020284 is a deficient number, since it is larger than the sum of its proper divisors (14329900).

19020284 is a wasteful number, since it uses less digits than its factorization.

19020284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9244 (or 9242 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 19020284 is about 4361.2250572517. The cubic root of 19020284 is about 266.9350887481.

The spelling of 19020284 in words is "nineteen million, twenty thousand, two hundred eighty-four".

Divisors: 1 2 4 547 1094 2188 8693 17386 34772 4755071 9510142 19020284