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255201143 = 1032477681
BaseRepresentation
bin11110011011000…
…00111101110111
3122210012120011012
433031200331313
51010312414033
641153502435
76216113441
oct1715407567
9583176135
10255201143
1112106643a
1271571a1b
1340b43bc2
1425c71491
1517610248
hexf360f77

255201143 has 4 divisors (see below), whose sum is σ = 257678928. Its totient is φ = 252723360.

The previous prime is 255201119. The next prime is 255201151. The reversal of 255201143 is 341102552.

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

It is a cyclic number.

It is not a de Polignac number, because 255201143 - 28 = 255200887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255201643) 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, 1238738 + ... + 1238943.

It is an arithmetic number, because the mean of its divisors is an integer number (64419732).

Almost surely, 2255201143 is an apocalyptic number.

255201143 is a deficient number, since it is larger than the sum of its proper divisors (2477785).

255201143 is a wasteful number, since it uses less digits than its factorization.

255201143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477784.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 255201143 is about 15975.0162128243. The cubic root of 255201143 is about 634.2992604797.

Adding to 255201143 its reverse (341102552), we get a palindrome (596303695).

The spelling of 255201143 in words is "two hundred fifty-five million, two hundred one thousand, one hundred forty-three".

Divisors: 1 103 2477681 255201143