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315250 = 2531397
BaseRepresentation
bin1001100111101110010
3121000102221
41030331302
540042000
610431254
72452045
oct1147562
9530387
10315250
111a5941
1213252a
13b0650
1482c5c
156361a
hex4cf72

315250 has 32 divisors (see below), whose sum is σ = 642096. Its totient is φ = 115200.

The previous prime is 315247. The next prime is 315251. The reversal of 315250 is 52513.

315250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 529 + 314721 = 23^2 + 561^2 .

It is not an unprimeable number, because it can be changed into a prime (315251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3202 + ... + 3298.

2315250 is an apocalyptic number.

315250 is an abundant number, since it is smaller than the sum of its proper divisors (326846).

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

315250 is a wasteful number, since it uses less digits than its factorization.

315250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 315250 is about 561.4712815452. The cubic root of 315250 is about 68.0589166434.

Adding to 315250 its reverse (52513), we get a palindrome (367763).

It can be divided in two parts, 315 and 250, that added together give a palindrome (565).

The spelling of 315250 in words is "three hundred fifteen thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 97 125 130 194 250 325 485 650 970 1261 1625 2425 2522 3250 4850 6305 12125 12610 24250 31525 63050 157625 315250