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42019230 = 23511127331
BaseRepresentation
bin1010000001001…
…0100110011110
32221001210112210
42200102212132
541224103410
64100341250
71020105021
oct240224636
987053483
1042019230
112179a740
12120a4826
138922966
14581b1b8
153a50220
hex281299e

42019230 has 32 divisors (see below), whose sum is σ = 110014848. Its totient is φ = 10186400.

The previous prime is 42019217. The next prime is 42019249. The reversal of 42019230 is 3291024.

It is a junction number, because it is equal to n+sod(n) for n = 42019197 and 42019206.

It is a congruent number.

It is an unprimeable number.

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, 63336 + ... + 63995.

It is an arithmetic number, because the mean of its divisors is an integer number (3437964).

Almost surely, 242019230 is an apocalyptic number.

42019230 is an abundant number, since it is smaller than the sum of its proper divisors (67995618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42019230 is a wasteful number, since it uses less digits than its factorization.

42019230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127352.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 42019230 is about 6482.2241553343. The cubic root of 42019230 is about 347.6557071817.

It can be divided in two parts, 4201 and 9230, that added together give a palindrome (13431).

The spelling of 42019230 in words is "forty-two million, nineteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 127331 254662 381993 636655 763986 1273310 1400641 1909965 2801282 3819930 4201923 7003205 8403846 14006410 21009615 42019230