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253054121 = 1132239417
BaseRepresentation
bin11110001010101…
…00110010101001
3122122011110222212
433011110302221
51004240212441
641035454505
76161632055
oct1705246251
9578143885
10253054121
1111a92a341
12708b7435
1340571888
1425872c65
1517338eeb
hexf154ca9

253054121 has 4 divisors (see below), whose sum is σ = 255293652. Its totient is φ = 250814592.

The previous prime is 253054117. The next prime is 253054159. The reversal of 253054121 is 121450352.

253054121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 34339600 + 218714521 = 5860^2 + 14789^2 .

It is a cyclic number.

It is not a de Polignac number, because 253054121 - 22 = 253054117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253054421) 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, 1119596 + ... + 1119821.

It is an arithmetic number, because the mean of its divisors is an integer number (63823413).

Almost surely, 2253054121 is an apocalyptic number.

It is an amenable number.

253054121 is a deficient number, since it is larger than the sum of its proper divisors (2239531).

253054121 is a wasteful number, since it uses less digits than its factorization.

253054121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239530.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 253054121 is about 15907.6749086722. The cubic root of 253054121 is about 632.5154498458.

The spelling of 253054121 in words is "two hundred fifty-three million, fifty-four thousand, one hundred twenty-one".

Divisors: 1 113 2239417 253054121