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2130579457 is a prime number
BaseRepresentation
bin111111011111110…
…0001000000000001
312111111001122120021
41332333201000001
513330412020312
6551225413441
7103540424626
oct17677410001
95444048507
102130579457
119a3724976
124b563a281
1327c536806
14162d6a34d
15c70a7c07
hex7efe1001

2130579457 has 2 divisors, whose sum is σ = 2130579458. Its totient is φ = 2130579456.

The previous prime is 2130579403. The next prime is 2130579461. The reversal of 2130579457 is 7549750312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1414963456 + 715616001 = 37616^2 + 26751^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130579457 - 27 = 2130579329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2130579557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065289728 + 1065289729.

It is an arithmetic number, because the mean of its divisors is an integer number (1065289729).

Almost surely, 22130579457 is an apocalyptic number.

It is an amenable number.

2130579457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130579457 is an equidigital number, since it uses as much as digits as its factorization.

2130579457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 2130579457 is about 46158.2003223696. The cubic root of 2130579457 is about 1286.7650162934.

The spelling of 2130579457 in words is "two billion, one hundred thirty million, five hundred seventy-nine thousand, four hundred fifty-seven".