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2031254257 is a prime number
BaseRepresentation
bin111100100010010…
…0111101011110001
312020120011102000011
41321010213223301
513130000114012
6533320454521
7101223243034
oct17104475361
95216142004
102031254257
1195265442a
1248831a441
13264a9b1c6
14153ab301b
15bd4d81a7
hex79127af1

2031254257 has 2 divisors, whose sum is σ = 2031254258. Its totient is φ = 2031254256.

The previous prime is 2031254237. The next prime is 2031254263. The reversal of 2031254257 is 7524521302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258191841 + 773062416 = 35471^2 + 27804^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031254257 - 227 = 1897036529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031254227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015627128 + 1015627129.

It is an arithmetic number, because the mean of its divisors is an integer number (1015627129).

Almost surely, 22031254257 is an apocalyptic number.

It is an amenable number.

2031254257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031254257 is an equidigital number, since it uses as much as digits as its factorization.

2031254257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 2031254257 is about 45069.4381704498. The cubic root of 2031254257 is about 1266.4501394966.

Adding to 2031254257 its reverse (7524521302), we get a palindrome (9555775559).

The spelling of 2031254257 in words is "two billion, thirty-one million, two hundred fifty-four thousand, two hundred fifty-seven".