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1430142997 is a prime number
BaseRepresentation
bin101010100111110…
…0100000000010101
310200200001210101011
41111033210000111
510412104033442
6353524532221
750304005053
oct12517440025
93620053334
101430142997
11674307668
1233ab51071
1319a3a387a
14d7d1b1d3
158584b117
hex553e4015

1430142997 has 2 divisors, whose sum is σ = 1430142998. Its totient is φ = 1430142996.

The previous prime is 1430142971. The next prime is 1430143021. The reversal of 1430142997 is 7992410341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1296648081 + 133494916 = 36009^2 + 11554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1430142997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430142947) 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 as a sum of consecutive naturals, namely, 715071498 + 715071499.

It is an arithmetic number, because the mean of its divisors is an integer number (715071499).

Almost surely, 21430142997 is an apocalyptic number.

It is an amenable number.

1430142997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430142997 is an equidigital number, since it uses as much as digits as its factorization.

1430142997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1430142997 is about 37817.2314824869. The cubic root of 1430142997 is about 1126.6607234008.

The spelling of 1430142997 in words is "one billion, four hundred thirty million, one hundred forty-two thousand, nine hundred ninety-seven".