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19205084 = 2223920089
BaseRepresentation
bin100100101000…
…0101111011100
31100010201102102
41021100233130
514404030314
61523344232
7322145333
oct111205734
940121372
1019205084
11a928078
126522078
133c95672
14279cd1a
151a455de
hex1250bdc

19205084 has 12 divisors (see below), whose sum is σ = 33751200. Its totient is φ = 9561888.

The previous prime is 19205063. The next prime is 19205099. The reversal of 19205084 is 48050291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9089 + ... + 11000.

It is an arithmetic number, because the mean of its divisors is an integer number (2812600).

Almost surely, 219205084 is an apocalyptic number.

It is an amenable number.

19205084 is a deficient number, since it is larger than the sum of its proper divisors (14546116).

19205084 is a wasteful number, since it uses less digits than its factorization.

19205084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20332 (or 20330 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 19205084 is about 4382.3605511185. The cubic root of 19205084 is about 267.7968126493.

The spelling of 19205084 in words is "nineteen million, two hundred five thousand, eighty-four".

Divisors: 1 2 4 239 478 956 20089 40178 80356 4801271 9602542 19205084