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255143203 = 7165721997
BaseRepresentation
bin11110011010100…
…10110100100011
3122210002121200021
433031102310203
51010304040303
641152334311
76215452510
oct1715226443
9583077607
10255143203
11121026957
1271544397
1340b23713
1425c58307
15175ecebd
hexf352d23

255143203 has 8 divisors (see below), whose sum is σ = 291781472. Its totient is φ = 218552256.

The previous prime is 255143159. The next prime is 255143221. The reversal of 255143203 is 302341552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255143203 - 29 = 255142691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255143503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601 + ... + 22597.

It is an arithmetic number, because the mean of its divisors is an integer number (36472684).

Almost surely, 2255143203 is an apocalyptic number.

255143203 is a deficient number, since it is larger than the sum of its proper divisors (36638269).

255143203 is a wasteful number, since it uses less digits than its factorization.

255143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23661.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 255143203 is about 15973.2026531939. The cubic root of 255143203 is about 634.2512537971.

Adding to 255143203 its reverse (302341552), we get a palindrome (557484755).

It can be divided in two parts, 2551 and 43203, that added together give a palindrome (45754).

The spelling of 255143203 in words is "two hundred fifty-five million, one hundred forty-three thousand, two hundred three".

Divisors: 1 7 1657 11599 21997 153979 36449029 255143203