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8305253081 is a prime number
BaseRepresentation
bin1111011110000100…
…00001101011011001
3210102210210120101222
413233002001223121
5114002121044311
63452042221425
7412545325556
oct75702015331
923383716358
108305253081
11358210a624
1217394b4875
13a2485cc48
1458b047a2d
153391e5adb
hex1ef081ad9

8305253081 has 2 divisors, whose sum is σ = 8305253082. Its totient is φ = 8305253080.

The previous prime is 8305253053. The next prime is 8305253087. The reversal of 8305253081 is 1803525038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5049523600 + 3255729481 = 71060^2 + 57059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8305253081 is a prime.

It is a super-2 number, since 2×83052530812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8305253087) 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, 4152626540 + 4152626541.

It is an arithmetic number, because the mean of its divisors is an integer number (4152626541).

Almost surely, 28305253081 is an apocalyptic number.

It is an amenable number.

8305253081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8305253081 is an equidigital number, since it uses as much as digits as its factorization.

8305253081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 8305253081 is about 91133.1612586769. The cubic root of 8305253081 is about 2025.1209057313.

The spelling of 8305253081 in words is "eight billion, three hundred five million, two hundred fifty-three thousand, eighty-one".