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1042392031 is a prime number
BaseRepresentation
bin111110001000011…
…010001111011111
32200122110000001021
4332020122033133
54113323021111
6251234025011
734555120552
oct7610321737
92618400037
101042392031
1149544861a
12251118167
13137c60725
149c624699
15617a6d71
hex3e21a3df

1042392031 has 2 divisors, whose sum is σ = 1042392032. Its totient is φ = 1042392030.

The previous prime is 1042392011. The next prime is 1042392053. The reversal of 1042392031 is 1302932401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042392031 - 229 = 505521119 is a prime.

It is a super-2 number, since 2×10423920312 = 2173162292584609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1042391987 and 1042392005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042392011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521196015 + 521196016.

It is an arithmetic number, because the mean of its divisors is an integer number (521196016).

Almost surely, 21042392031 is an apocalyptic number.

1042392031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042392031 is an equidigital number, since it uses as much as digits as its factorization.

1042392031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1042392031 is about 32286.0965587356. The cubic root of 1042392031 is about 1013.9355746615.

The spelling of 1042392031 in words is "one billion, forty-two million, three hundred ninety-two thousand, thirty-one".