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253271069 is a prime number
BaseRepresentation
bin11110001100010…
…01110000011101
3122122120111120222
433012021300131
51004314133234
641044251125
76163524422
oct1706116035
9578514528
10253271069
1111aa68337
12709a0aa5
134061954c
14258cbd49
151737d42e
hexf189c1d

253271069 has 2 divisors, whose sum is σ = 253271070. Its totient is φ = 253271068.

The previous prime is 253271021. The next prime is 253271071. The reversal of 253271069 is 960172352.

253271069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214271044 + 39000025 = 14638^2 + 6245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-253271069 is a prime.

It is a super-2 number, since 2×2532710692 = 128292468784805522, which contains 22 as substring.

Together with 253271071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253271089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126635534 + 126635535.

It is an arithmetic number, because the mean of its divisors is an integer number (126635535).

Almost surely, 2253271069 is an apocalyptic number.

It is an amenable number.

253271069 is a deficient number, since it is larger than the sum of its proper divisors (1).

253271069 is an equidigital number, since it uses as much as digits as its factorization.

253271069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 253271069 is about 15914.4924204324. The cubic root of 253271069 is about 632.6961539646.

The spelling of 253271069 in words is "two hundred fifty-three million, two hundred seventy-one thousand, sixty-nine".