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42031141131 = 372119485701
BaseRepresentation
bin100111001001010000…
…000101000100001011
311000111020000012022210
4213021100011010023
51142034433004011
631150413120203
73015366543030
oct471120050413
9130436005283
1042031141131
1116909535481
128190189063
133c6ab11115
14206a251387
15115ee9b6a6
hex9c940510b

42031141131 has 16 divisors (see below), whose sum is σ = 64351002368. Its totient is φ = 23903964000.

The previous prime is 42031141079. The next prime is 42031141169. The reversal of 42031141131 is 13114113024.

It is not a de Polignac number, because 42031141131 - 26 = 42031141067 is a prime.

It is a super-2 number, since 2×420311411312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42031141098 and 42031141107.

It is not an unprimeable number, because it can be changed into a prime (42031141181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4738420 + ... + 4747281.

It is an arithmetic number, because the mean of its divisors is an integer number (4021937648).

Almost surely, 242031141131 is an apocalyptic number.

42031141131 is a deficient number, since it is larger than the sum of its proper divisors (22319861237).

42031141131 is a wasteful number, since it uses less digits than its factorization.

42031141131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485922.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 42031141131 its reverse (13114113024), we get a palindrome (55145254155).

The spelling of 42031141131 in words is "forty-two billion, thirty-one million, one hundred forty-one thousand, one hundred thirty-one".

Divisors: 1 3 7 21 211 633 1477 4431 9485701 28457103 66399907 199199721 2001482911 6004448733 14010380377 42031141131