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254134221 = 3112929157
BaseRepresentation
bin11110010010111…
…00011111001101
3122201012100121120
433021130133031
51010024243341
641114551153
76204051045
oct1711343715
9581170546
10254134221
111204a7890
12711384b9
134085c3a3
1425a74725
151749e066
hexf25c7cd

254134221 has 24 divisors (see below), whose sum is σ = 382877664. Its totient is φ = 148693440.

The previous prime is 254134219. The next prime is 254134229. The reversal of 254134221 is 122431452.

It is not a de Polignac number, because 254134221 - 21 = 254134219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254134191 and 254134200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254134229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23175 + ... + 32331.

It is an arithmetic number, because the mean of its divisors is an integer number (15953236).

Almost surely, 2254134221 is an apocalyptic number.

It is an amenable number.

254134221 is a deficient number, since it is larger than the sum of its proper divisors (128743443).

254134221 is a wasteful number, since it uses less digits than its factorization.

254134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9229 (or 9200 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 254134221 is about 15941.5877816484. The cubic root of 254134221 is about 633.4140853329.

Adding to 254134221 its reverse (122431452), we get a palindrome (376565673).

The spelling of 254134221 in words is "two hundred fifty-four million, one hundred thirty-four thousand, two hundred twenty-one".

Divisors: 1 3 11 29 33 87 319 841 957 2523 9157 9251 27471 27753 100727 265553 302181 796659 2921083 7701037 8763249 23103111 84711407 254134221