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1270495313 is a prime number
BaseRepresentation
bin100101110111010…
…0011100001010001
310021112122211220222
41023232203201101
510100221322223
6330023042425
743325013653
oct11356434121
93245584828
101270495313
115a2185a2a
122b55a0415
131732a7599
14c0a406d3
15768130c8
hex4bba3851

1270495313 has 2 divisors, whose sum is σ = 1270495314. Its totient is φ = 1270495312.

The previous prime is 1270495297. The next prime is 1270495327. The reversal of 1270495313 is 3135940721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1195983889 + 74511424 = 34583^2 + 8632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270495313 - 24 = 1270495297 is a prime.

It is a super-2 number, since 2×12704953132 = 3228316680709935938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1270497313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635247656 + 635247657.

It is an arithmetic number, because the mean of its divisors is an integer number (635247657).

Almost surely, 21270495313 is an apocalyptic number.

It is an amenable number.

1270495313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270495313 is an equidigital number, since it uses as much as digits as its factorization.

1270495313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1270495313 is about 35644.0080939279. The cubic root of 1270495313 is about 1083.0728994058.

The spelling of 1270495313 in words is "one billion, two hundred seventy million, four hundred ninety-five thousand, three hundred thirteen".