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2019705230 = 251711880619
BaseRepresentation
bin111100001100010…
…0100000110001110
312012202102122201102
41320120210012032
513114021031410
6532225143102
7101023132304
oct17030440616
95182378642
102019705230
11947086484
1248448aa92
1326258656a
14152348274
15bc4a62a5
hex7862418e

2019705230 has 16 divisors (see below), whose sum is σ = 3849320880. Its totient is φ = 760359552.

The previous prime is 2019705133. The next prime is 2019705239. The reversal of 2019705230 is 325079102.

It is a junction number, because it is equal to n+sod(n) for n = 2019705193 and 2019705202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019705239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5940140 + ... + 5940479.

It is an arithmetic number, because the mean of its divisors is an integer number (240582555).

Almost surely, 22019705230 is an apocalyptic number.

2019705230 is a deficient number, since it is larger than the sum of its proper divisors (1829615650).

2019705230 is a wasteful number, since it uses less digits than its factorization.

2019705230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11880643.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 2019705230 is about 44941.1307156373. The cubic root of 2019705230 is about 1264.0453732945.

The spelling of 2019705230 in words is "two billion, nineteen million, seven hundred five thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 11880619 23761238 59403095 118806190 201970523 403941046 1009852615 2019705230