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255003081 = 385001027
BaseRepresentation
bin11110011001100…
…00100111001001
3122202211111110120
433030300213021
51010240044311
641145333453
76214330134
oct1714604711
9582744416
10255003081
11120a40653
1271497289
1340aa49c8
1425c1d21b
15175c1706
hexf3309c9

255003081 has 4 divisors (see below), whose sum is σ = 340004112. Its totient is φ = 170002052.

The previous prime is 255003071. The next prime is 255003101. The reversal of 255003081 is 180300552.

255003081 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255003081 - 26 = 255003017 is a prime.

It is a super-2 number, since 2×2550030812 = 130053142638985122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255003071) 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, 42500511 + ... + 42500516.

It is an arithmetic number, because the mean of its divisors is an integer number (85001028).

Almost surely, 2255003081 is an apocalyptic number.

It is an amenable number.

255003081 is a deficient number, since it is larger than the sum of its proper divisors (85001031).

255003081 is an equidigital number, since it uses as much as digits as its factorization.

255003081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85001030.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 255003081 is about 15968.8158922320. The cubic root of 255003081 is about 634.1351244661.

The spelling of 255003081 in words is "two hundred fifty-five million, three thousand, eighty-one".

Divisors: 1 3 85001027 255003081