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254112005 = 5717427079
BaseRepresentation
bin11110010010101…
…11000100000101
3122201011020010202
433021113010011
51010023041010
641114300245
76203626220
oct1711270405
9581136122
10254112005
11120492124
1271127685
1340852244
1425a6a5b7
15174976a5
hexf257105

254112005 has 16 divisors (see below), whose sum is σ = 368997120. Its totient is φ = 163997952.

The previous prime is 254111989. The next prime is 254112017. The reversal of 254112005 is 500211452.

It is a cyclic number.

It is not a de Polignac number, because 254112005 - 24 = 254111989 is a prime.

It is a super-2 number, since 2×2541120052 = 129145822170240050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 212945 + ... + 214134.

It is an arithmetic number, because the mean of its divisors is an integer number (23062320).

Almost surely, 2254112005 is an apocalyptic number.

It is an amenable number.

254112005 is a deficient number, since it is larger than the sum of its proper divisors (114885115).

254112005 is a wasteful number, since it uses less digits than its factorization.

254112005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427108.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 254112005 is about 15940.8909725900. The cubic root of 254112005 is about 633.3956274522.

Adding to 254112005 its reverse (500211452), we get a palindrome (754323457).

The spelling of 254112005 in words is "two hundred fifty-four million, one hundred twelve thousand, five".

Divisors: 1 5 7 17 35 85 119 595 427079 2135395 2989553 7260343 14947765 36301715 50822401 254112005