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254434121 = 1714966713
BaseRepresentation
bin11110010101001…
…01101101001001
3122201202120222222
433022211231021
51010113342441
641125223425
76206440304
oct1712455511
9581676888
10254434121
11120692137
1271261b75
1340935a46
1425b11b3b
151750cd4b
hexf2a5b49

254434121 has 4 divisors (see below), whose sum is σ = 269400852. Its totient is φ = 239467392.

The previous prime is 254434091. The next prime is 254434129. The reversal of 254434121 is 121434452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 226924096 + 27510025 = 15064^2 + 5245^2 .

It is a cyclic number.

It is not a de Polignac number, because 254434121 - 26 = 254434057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254434129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7483340 + ... + 7483373.

It is an arithmetic number, because the mean of its divisors is an integer number (67350213).

Almost surely, 2254434121 is an apocalyptic number.

It is an amenable number.

254434121 is a deficient number, since it is larger than the sum of its proper divisors (14966731).

254434121 is a wasteful number, since it uses less digits than its factorization.

254434121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14966730.

The product of its digits is 3840, while the sum is 26.

The square root of 254434121 is about 15950.9912231184. The cubic root of 254434121 is about 633.6631482218.

Adding to 254434121 its reverse (121434452), we get a palindrome (375868573).

The spelling of 254434121 in words is "two hundred fifty-four million, four hundred thirty-four thousand, one hundred twenty-one".

Divisors: 1 17 14966713 254434121