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255142001 = 1715008353
BaseRepresentation
bin11110011010100…
…10100001110001
3122210002120000202
433031102201301
51010304021001
641152324545
76215446142
oct1715224161
9583076022
10255142001
11121025a64
1271543755
1340b22cca
1425c57ac9
15175ec96b
hexf352871

255142001 has 4 divisors (see below), whose sum is σ = 270150372. Its totient is φ = 240133632.

The previous prime is 255141959. The next prime is 255142003. The reversal of 255142001 is 100241552.

255142001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97614400 + 157527601 = 9880^2 + 12551^2 .

It is a cyclic number.

It is not a de Polignac number, because 255142001 - 226 = 188033137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255142003) 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, 7504160 + ... + 7504193.

It is an arithmetic number, because the mean of its divisors is an integer number (67537593).

Almost surely, 2255142001 is an apocalyptic number.

It is an amenable number.

255142001 is a deficient number, since it is larger than the sum of its proper divisors (15008371).

255142001 is a wasteful number, since it uses less digits than its factorization.

255142001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15008370.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 255142001 is about 15973.1650276331. The cubic root of 255142001 is about 634.2502577928.

Adding to 255142001 its reverse (100241552), we get a palindrome (355383553).

The spelling of 255142001 in words is "two hundred fifty-five million, one hundred forty-two thousand, one".

Divisors: 1 17 15008353 255142001