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253138314 = 231113295033
BaseRepresentation
bin11110001011010…
…01010110001010
3122122022202111010
433011221112022
51004300411224
641041344350
76162432402
oct1705512612
9578282433
10253138314
1111a987620
12709380b6
13405a0cb0
1425895802
1517353e29
hexf16958a

253138314 has 32 divisors (see below), whose sum is σ = 594788544. Its totient is φ = 70807680.

The previous prime is 253138307. The next prime is 253138331. The reversal of 253138314 is 413831352.

253138314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146659 + ... + 148374.

It is an arithmetic number, because the mean of its divisors is an integer number (18587142).

Almost surely, 2253138314 is an apocalyptic number.

253138314 is an abundant number, since it is smaller than the sum of its proper divisors (341650230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253138314 is a wasteful number, since it uses less digits than its factorization.

253138314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295062.

The product of its digits is 8640, while the sum is 30.

The square root of 253138314 is about 15910.3209898481. The cubic root of 253138314 is about 632.5855896090.

Adding to 253138314 its reverse (413831352), we get a palindrome (666969666).

The spelling of 253138314 in words is "two hundred fifty-three million, one hundred thirty-eight thousand, three hundred fourteen".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 295033 590066 885099 1770198 3245363 3835429 6490726 7670858 9736089 11506287 19472178 23012574 42189719 84379438 126569157 253138314