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42210404124 = 2237502504811
BaseRepresentation
bin100111010011111011…
…111010011100011100
311000221201022200220220
4213103323322130130
51142421330412444
631220255241340
73023004341460
oct472373723434
9130851280826
1042210404124
11169a0744409
128220219250
133c98cb76b5
142085d964a0
151170aab619
hex9d3efa71c

42210404124 has 24 divisors (see below), whose sum is σ = 112561077888. Its totient is φ = 12060115440.

The previous prime is 42210404113. The next prime is 42210404129. The reversal of 42210404124 is 42140401224.

It is a super-2 number, since 2×422104041242 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42210404094 and 42210404103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42210404129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251252322 + ... + 251252489.

It is an arithmetic number, because the mean of its divisors is an integer number (4690044912).

Almost surely, 242210404124 is an apocalyptic number.

It is an amenable number.

42210404124 is an abundant number, since it is smaller than the sum of its proper divisors (70350673764).

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

42210404124 is a wasteful number, since it uses less digits than its factorization.

42210404124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502504825 (or 502504823 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 42210404124 its reverse (42140401224), we get a palindrome (84350805348).

The spelling of 42210404124 in words is "forty-two billion, two hundred ten million, four hundred four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 502504811 1005009622 1507514433 2010019244 3015028866 3517533677 6030057732 7035067354 10552601031 14070134708 21105202062 42210404124