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255146323 = 1971295159
BaseRepresentation
bin11110011010100…
…11100101010011
3122210002202221211
433031103211103
51010304140243
641152400551
76215464555
oct1715234523
9583082854
10255146323
11121029233
1271546157
1340b24c73
1425c594d5
15175edd9d
hexf353953

255146323 has 4 divisors (see below), whose sum is σ = 256441680. Its totient is φ = 253850968.

The previous prime is 255146273. The next prime is 255146327. The reversal of 255146323 is 323641552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-255146323 is a prime.

It is a super-2 number, since 2×2551463232 = 130199292280840658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255146327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647383 + ... + 647776.

It is an arithmetic number, because the mean of its divisors is an integer number (64110420).

Almost surely, 2255146323 is an apocalyptic number.

255146323 is a deficient number, since it is larger than the sum of its proper divisors (1295357).

255146323 is a wasteful number, since it uses less digits than its factorization.

255146323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295356.

The product of its digits is 21600, while the sum is 31.

The square root of 255146323 is about 15973.3003164656. The cubic root of 255146323 is about 634.2538390849.

Adding to 255146323 its reverse (323641552), we get a palindrome (578787875).

The spelling of 255146323 in words is "two hundred fifty-five million, one hundred forty-six thousand, three hundred twenty-three".

Divisors: 1 197 1295159 255146323