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2471255 = 5494251
BaseRepresentation
bin1001011011010101010111
311122112220222
421123111113
51113040010
6124544555
730001553
oct11332527
94575828
102471255
111438766
129b215b
13686aa7
14484863
1533c355
hex25b557

2471255 has 4 divisors (see below), whose sum is σ = 2965512. Its totient is φ = 1977000.

The previous prime is 2471251. The next prime is 2471257. The reversal of 2471255 is 5521742.

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

It is not a de Polignac number, because 2471255 - 22 = 2471251 is a prime.

It is a super-2 number, since 2×24712552 = 12214202550050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2471251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247121 + ... + 247130.

It is an arithmetic number, because the mean of its divisors is an integer number (741378).

22471255 is an apocalyptic number.

2471255 is a deficient number, since it is larger than the sum of its proper divisors (494257).

2471255 is an equidigital number, since it uses as much as digits as its factorization.

2471255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494256.

The product of its digits is 2800, while the sum is 26.

The square root of 2471255 is about 1572.0225825350. The cubic root of 2471255 is about 135.1987014511.

Adding to 2471255 its reverse (5521742), we get a palindrome (7992997).

The spelling of 2471255 in words is "two million, four hundred seventy-one thousand, two hundred fifty-five".

Divisors: 1 5 494251 2471255