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254642593 is a prime number
BaseRepresentation
bin11110010110110…
…00100110100001
3122202011011222011
433023120212201
51010142030333
641133512521
76211266142
oct1713304641
9582134864
10254642593
11120814827
1271342741
13409a98ba
1425b67ac9
151754e9cd
hexf2d89a1

254642593 has 2 divisors, whose sum is σ = 254642594. Its totient is φ = 254642592.

The previous prime is 254642573. The next prime is 254642599. The reversal of 254642593 is 395246452.

254642593 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., 218064289 + 36578304 = 14767^2 + 6048^2 .

It is a cyclic number.

It is not a de Polignac number, because 254642593 - 25 = 254642561 is a prime.

It is not a weakly prime, because it can be changed into another prime (254642599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127321296 + 127321297.

It is an arithmetic number, because the mean of its divisors is an integer number (127321297).

Almost surely, 2254642593 is an apocalyptic number.

It is an amenable number.

254642593 is a deficient number, since it is larger than the sum of its proper divisors (1).

254642593 is an equidigital number, since it uses as much as digits as its factorization.

254642593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 254642593 is about 15957.5246513988. The cubic root of 254642593 is about 633.8361661076.

The spelling of 254642593 in words is "two hundred fifty-four million, six hundred forty-two thousand, five hundred ninety-three".