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42021104244 = 2237310209209
BaseRepresentation
bin100111001000101001…
…110010101001110100
311000110112010021022020
4213020221302221310
51142024400313434
631145414033140
73015215331000
oct471051625164
9130415107266
1042021104244
11169038aa629
1281889487b0
133c68a08832
142068b9b700
15115e167849
hex9c8a72a74

42021104244 has 48 divisors (see below), whose sum is σ = 114343152000. Its totient is φ = 12006028608.

The previous prime is 42021104243. The next prime is 42021104249. The reversal of 42021104244 is 44240112024.

It is a super-2 number, since 2×420211042442 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42021104243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5100489 + ... + 5108720.

It is an arithmetic number, because the mean of its divisors is an integer number (2382149000).

Almost surely, 242021104244 is an apocalyptic number.

It is an amenable number.

42021104244 is an abundant number, since it is smaller than the sum of its proper divisors (72322047756).

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

42021104244 is a wasteful number, since it uses less digits than its factorization.

42021104244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10209237 (or 10209221 counting only the distinct ones).

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

Adding to 42021104244 its reverse (44240112024), we get a palindrome (86261216268).

The spelling of 42021104244 in words is "forty-two billion, twenty-one million, one hundred four thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 343 588 686 1029 1372 2058 4116 10209209 20418418 30627627 40836836 61255254 71464463 122510508 142928926 214393389 285857852 428786778 500251241 857573556 1000502482 1500753723 2001004964 3001507446 3501758687 6003014892 7003517374 10505276061 14007034748 21010552122 42021104244