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253050109 = 1319465393
BaseRepresentation
bin11110001010100…
…11110011111101
3122122011021111021
433011103303331
51004240100414
641035424141
76161614264
oct1705236375
9578137437
10253050109
1111a927324
12708b5051
134056cac0
14258715db
1517337c24
hexf153cfd

253050109 has 4 divisors (see below), whose sum is σ = 272515516. Its totient is φ = 233584704.

The previous prime is 253050103. The next prime is 253050157. The reversal of 253050109 is 901050352.

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 29398084 + 223652025 = 5422^2 + 14955^2 .

It is a cyclic number.

It is not a de Polignac number, because 253050109 - 23 = 253050101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253050101) 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, 9732684 + ... + 9732709.

It is an arithmetic number, because the mean of its divisors is an integer number (68128879).

Almost surely, 2253050109 is an apocalyptic number.

It is an amenable number.

253050109 is a deficient number, since it is larger than the sum of its proper divisors (19465407).

253050109 is a wasteful number, since it uses less digits than its factorization.

253050109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19465406.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 253050109 is about 15907.5488055200. The cubic root of 253050109 is about 632.5121071281.

The spelling of 253050109 in words is "two hundred fifty-three million, fifty thousand, one hundred nine".

Divisors: 1 13 19465393 253050109