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12042931 is a prime number
BaseRepresentation
bin101101111100…
…001010110011
3211122211210111
4231330022303
511040333211
61110042151
7204235405
oct55741263
924584714
1012042931
11688603a
124049357
1326586c4
141856b75
1510cd421
hexb7c2b3

12042931 has 2 divisors, whose sum is σ = 12042932. Its totient is φ = 12042930.

The previous prime is 12042923. The next prime is 12042983. The reversal of 12042931 is 13924021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12042931 - 23 = 12042923 is a prime.

It is a super-2 number, since 2×120429312 = 290064374141522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12043931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021465 + 6021466.

It is an arithmetic number, because the mean of its divisors is an integer number (6021466).

Almost surely, 212042931 is an apocalyptic number.

12042931 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042931 is an equidigital number, since it uses as much as digits as its factorization.

12042931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12042931 is about 3470.2926389571. The cubic root of 12042931 is about 229.2155442778.

Adding to 12042931 its reverse (13924021), we get a palindrome (25966952).

The spelling of 12042931 in words is "twelve million, forty-two thousand, nine hundred thirty-one".