Search a number
-
+
2857398263 is a prime number
BaseRepresentation
bin1010101001010000…
…0110111111110111
321101010200212112022
42222110012333313
521322443221023
61151311543355
7130544325116
oct25224067767
97333625468
102857398263
111236a21675
12678b2ab5b
13366ca5c05
141d16c5c7d
1511acc67c8
hexaa506ff7

2857398263 has 2 divisors, whose sum is σ = 2857398264. Its totient is φ = 2857398262.

The previous prime is 2857398253. The next prime is 2857398283. The reversal of 2857398263 is 3628937582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2857398263 - 228 = 2588962807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2857398253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428699131 + 1428699132.

It is an arithmetic number, because the mean of its divisors is an integer number (1428699132).

Almost surely, 22857398263 is an apocalyptic number.

2857398263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2857398263 is an equidigital number, since it uses as much as digits as its factorization.

2857398263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 53.

The square root of 2857398263 is about 53454.6374321256. The cubic root of 2857398263 is about 1419.0256926559.

The spelling of 2857398263 in words is "two billion, eight hundred fifty-seven million, three hundred ninety-eight thousand, two hundred sixty-three".