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42030243340 = 2255693693343
BaseRepresentation
bin100111001001001100…
…101001111000001100
311000111011022120210021
4213021030221320030
51142034220241330
631150341551524
73015356113411
oct471114517014
9130434276707
1042030243340
1116908a819a8
12818ba155a4
133c6a888597
14206a09a108
15115ed7067a
hex9c9329e0c

42030243340 has 24 divisors (see below), whose sum is σ = 88418655360. Its totient is φ = 16782546048.

The previous prime is 42030243337. The next prime is 42030243361. The reversal of 42030243340 is 4334203024.

It is a super-2 number, since 2×420302433402 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835292 + ... + 1858051.

It is an arithmetic number, because the mean of its divisors is an integer number (3684110640).

Almost surely, 242030243340 is an apocalyptic number.

It is an amenable number.

42030243340 is an abundant number, since it is smaller than the sum of its proper divisors (46388412020).

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

42030243340 is a wasteful number, since it uses less digits than its factorization.

42030243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693921 (or 3693919 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 42030243340 its reverse (4334203024), we get a palindrome (46364446364).

The spelling of 42030243340 in words is "forty-two billion, thirty million, two hundred forty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 569 1138 2276 2845 5690 11380 3693343 7386686 14773372 18466715 36933430 73866860 2101512167 4203024334 8406048668 10507560835 21015121670 42030243340