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1030042831 is a prime number
BaseRepresentation
bin111101011001010…
…011010011001111
32122210012121010111
4331121103103033
54102142332311
6250113220451
734345135216
oct7531232317
92583177114
101030042831
11489483474
12248b61727
131355287cc
149ab2c07d
1560667d21
hex3d6534cf

1030042831 has 2 divisors, whose sum is σ = 1030042832. Its totient is φ = 1030042830.

The previous prime is 1030042829. The next prime is 1030042837. The reversal of 1030042831 is 1382400301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1030042831 - 21 = 1030042829 is a prime.

It is a super-2 number, since 2×10300428312 = 2121976467388989122, which contains 22 as substring.

Together with 1030042829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030042837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515021415 + 515021416.

It is an arithmetic number, because the mean of its divisors is an integer number (515021416).

Almost surely, 21030042831 is an apocalyptic number.

1030042831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030042831 is an equidigital number, since it uses as much as digits as its factorization.

1030042831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1030042831 is about 32094.2803471273. The cubic root of 1030042831 is about 1009.9156322692.

The spelling of 1030042831 in words is "one billion, thirty million, forty-two thousand, eight hundred thirty-one".