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8253103949 is a prime number
BaseRepresentation
bin1111010111110110…
…00101111101001101
3210022011200010020122
413223323011331031
5113400243311244
63442540354325
7411343140356
oct75373057515
923264603218
108253103949
113555731172
121723b459a5
13a16b0157c
14584150d2d
153348441ee
hex1ebec5f4d

8253103949 has 2 divisors, whose sum is σ = 8253103950. Its totient is φ = 8253103948.

The previous prime is 8253103913. The next prime is 8253103981. The reversal of 8253103949 is 9493013528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5540569225 + 2712534724 = 74435^2 + 52082^2 .

It is a cyclic number.

It is not a de Polignac number, because 8253103949 - 232 = 3958136653 is a prime.

It is a super-2 number, since 2×82531039492 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8253103049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126551974 + 4126551975.

It is an arithmetic number, because the mean of its divisors is an integer number (4126551975).

Almost surely, 28253103949 is an apocalyptic number.

It is an amenable number.

8253103949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8253103949 is an equidigital number, since it uses as much as digits as its factorization.

8253103949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 8253103949 is about 90846.5956929592. The cubic root of 8253103949 is about 2020.8733886971.

The spelling of 8253103949 in words is "eight billion, two hundred fifty-three million, one hundred three thousand, nine hundred forty-nine".