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2042131105240 = 23559069864299
BaseRepresentation
bin11101101101111000011…
…111111100010111011000
321020020002121221202021021
4131231320133330113120
5231424241030331430
64202050404452224
7300352624663462
oct35557037742730
97206077852237
102042131105240
11718076852826
1228b9416aa074
1311a758ca5845
1470ba80c3132
15381c1b2307a
hex1db787fc5d8

2042131105240 has 32 divisors (see below), whose sum is σ = 4594878090000. Its totient is φ = 816837668224.

The previous prime is 2042131105219. The next prime is 2042131105241. The reversal of 2042131105240 is 425011312402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042131105241) 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, 1930611 + ... + 2794909.

Almost surely, 22042131105240 is an apocalyptic number.

2042131105240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042131105240 is an abundant number, since it is smaller than the sum of its proper divisors (2552746984760).

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

2042131105240 is a wasteful number, since it uses less digits than its factorization.

2042131105240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923379 (or 923375 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 2042131105240 its reverse (425011312402), we get a palindrome (2467142417642).

The spelling of 2042131105240 in words is "two trillion, forty-two billion, one hundred thirty-one million, one hundred five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 59069 118138 236276 295345 472552 590690 864299 1181380 1728598 2362760 3457196 4321495 6914392 8642990 17285980 34571960 51053277631 102106555262 204213110524 255266388155 408426221048 510532776310 1021065552620 2042131105240