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8257060457 is a prime number
BaseRepresentation
bin1111011000010100…
…01011111001101001
3210022110010010112222
413230022023321221
5113402301413312
63443201243425
7411421566362
oct75412137151
923273103488
108257060457
113557993808
121725333575
13a178883b9
145848a0b69
15334d76672
hex1ec28be69

8257060457 has 2 divisors, whose sum is σ = 8257060458. Its totient is φ = 8257060456.

The previous prime is 8257060393. The next prime is 8257060501. The reversal of 8257060457 is 7540607528.

8257060457 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (8257060501) can be obtained adding 8257060457 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6577372201 + 1679688256 = 81101^2 + 40984^2 .

It is a cyclic number.

It is not a de Polignac number, because 8257060457 - 26 = 8257060393 is a prime.

It is not a weakly prime, because it can be changed into another prime (8257065457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128530228 + 4128530229.

It is an arithmetic number, because the mean of its divisors is an integer number (4128530229).

Almost surely, 28257060457 is an apocalyptic number.

It is an amenable number.

8257060457 is a deficient number, since it is larger than the sum of its proper divisors (1).

8257060457 is an equidigital number, since it uses as much as digits as its factorization.

8257060457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 8257060457 is about 90868.3688474708. The cubic root of 8257060457 is about 2021.1962702227.

The spelling of 8257060457 in words is "eight billion, two hundred fifty-seven million, sixty thousand, four hundred fifty-seven".