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19485230 = 2517611879
BaseRepresentation
bin100101001010…
…1001000101110
31100122221201012
41022111020232
514442011410
61533345222
7324423152
oct112251056
940587635
1019485230
11aaa95a6
126638212
13406302b
142833062
151a9d605
hex129522e

19485230 has 32 divisors (see below), whose sum is σ = 37765440. Its totient is φ = 7211520.

The previous prime is 19485227. The next prime is 19485239. The reversal of 19485230 is 3258491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19485239) 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 15 ways as a sum of consecutive naturals, for example, 9431 + ... + 11309.

It is an arithmetic number, because the mean of its divisors is an integer number (1180170).

Almost surely, 219485230 is an apocalyptic number.

19485230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19485230 is a deficient number, since it is larger than the sum of its proper divisors (18280210).

19485230 is a wasteful number, since it uses less digits than its factorization.

19485230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 19485230 is about 4414.2077431856. The cubic root of 19485230 is about 269.0926561314.

The spelling of 19485230 in words is "nineteen million, four hundred eighty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 61 85 122 170 305 610 1037 1879 2074 3758 5185 9395 10370 18790 31943 63886 114619 159715 229238 319430 573095 1146190 1948523 3897046 9742615 19485230