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315054249 = 34310124181
BaseRepresentation
bin10010110001110…
…101100010101001
3210221211102011220
4102301311202221
51121123213444
651132412253
710543626336
oct2261654251
9727742156
10315054249
11151926a14
1289617089
135036c043
142dbb198d
151c9d4619
hex12c758a9

315054249 has 16 divisors (see below), whose sum is σ = 434115264. Its totient is φ = 203112000.

The previous prime is 315054247. The next prime is 315054269. The reversal of 315054249 is 942450513.

It is not a de Polignac number, because 315054249 - 21 = 315054247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315054241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939 + ... + 25119.

It is an arithmetic number, because the mean of its divisors is an integer number (27132204).

Almost surely, 2315054249 is an apocalyptic number.

It is an amenable number.

315054249 is a deficient number, since it is larger than the sum of its proper divisors (119061015).

315054249 is a wasteful number, since it uses less digits than its factorization.

315054249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24328.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 315054249 is about 17749.7675759431. The cubic root of 315054249 is about 680.4482691621.

The spelling of 315054249 in words is "three hundred fifteen million, fifty-four thousand, two hundred forty-nine".

Divisors: 1 3 43 101 129 303 4343 13029 24181 72543 1039783 2442281 3119349 7326843 105018083 315054249