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254135401 = 13159712241
BaseRepresentation
bin11110010010111…
…00110001101001
3122201012102020021
433021130301221
51010024313101
641115000441
76204054352
oct1711346151
9581172207
10254135401
111204a8763
1271139121
134085caa0
1425a74d29
151749e5a1
hexf25cc69

254135401 has 8 divisors (see below), whose sum is σ = 273878024. Its totient is φ = 234420480.

The previous prime is 254135383. The next prime is 254135417. The reversal of 254135401 is 104531452.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2088025 + 252047376 = 1445^2 + 15876^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254135401 - 25 = 254135369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254135491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14641 + ... + 26881.

It is an arithmetic number, because the mean of its divisors is an integer number (34234753).

Almost surely, 2254135401 is an apocalyptic number.

It is an amenable number.

254135401 is a deficient number, since it is larger than the sum of its proper divisors (19742623).

254135401 is a wasteful number, since it uses less digits than its factorization.

254135401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13851.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 254135401 is about 15941.6247917206. The cubic root of 254135401 is about 633.4150656907.

Adding to 254135401 its reverse (104531452), we get a palindrome (358666853).

The spelling of 254135401 in words is "two hundred fifty-four million, one hundred thirty-five thousand, four hundred one".

Divisors: 1 13 1597 12241 20761 159133 19548877 254135401