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255274351 = 821310931
BaseRepresentation
bin11110011011100…
…10110101101111
3122210100021120121
433031302311233
51010322234401
641155225411
76216540043
oct1715626557
9583307517
10255274351
11121106442
12715a8267
1340b6b317
1425c90023
1517626ca1
hexf372d6f

255274351 has 4 divisors (see below), whose sum is σ = 255586104. Its totient is φ = 254962600.

The previous prime is 255274333. The next prime is 255274379. The reversal of 255274351 is 153472552.

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 255274351 - 27 = 255274223 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 (255274301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154645 + ... + 156286.

It is an arithmetic number, because the mean of its divisors is an integer number (63896526).

Almost surely, 2255274351 is an apocalyptic number.

255274351 is a deficient number, since it is larger than the sum of its proper divisors (311753).

255274351 is an equidigital number, since it uses as much as digits as its factorization.

255274351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311752.

The product of its digits is 42000, while the sum is 34.

The square root of 255274351 is about 15977.3073764011. The cubic root of 255274351 is about 634.3599072048.

The spelling of 255274351 in words is "two hundred fifty-five million, two hundred seventy-four thousand, three hundred fifty-one".

Divisors: 1 821 310931 255274351