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275234081 is a prime number
BaseRepresentation
bin10000011001111…
…011110100100001
3201011220100011212
4100121323310201
51030424442311
643151115505
76551310503
oct2031736441
9634810155
10275234081
111313a9491
1278212b95
1345039305
14287a7d73
151926ac8b
hex1067bd21

275234081 has 2 divisors, whose sum is σ = 275234082. Its totient is φ = 275234080.

The previous prime is 275234051. The next prime is 275234087. The reversal of 275234081 is 180432572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157728481 + 117505600 = 12559^2 + 10840^2 .

It is a cyclic number.

It is not a de Polignac number, because 275234081 - 218 = 274971937 is a prime.

It is a super-2 number, since 2×2752340812 = 151507598687829122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275234087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137617040 + 137617041.

It is an arithmetic number, because the mean of its divisors is an integer number (137617041).

Almost surely, 2275234081 is an apocalyptic number.

It is an amenable number.

275234081 is a deficient number, since it is larger than the sum of its proper divisors (1).

275234081 is an equidigital number, since it uses as much as digits as its factorization.

275234081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 275234081 is about 16590.1802582130. The cubic root of 275234081 is about 650.4801824597.

The spelling of 275234081 in words is "two hundred seventy-five million, two hundred thirty-four thousand, eighty-one".