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315253 = 367859
BaseRepresentation
bin1001100111101110101
3121000110001
41030331311
540042003
610431301
72452051
oct1147565
9530401
10315253
111a5944
12132531
13b0653
1482c61
156361d
hex4cf75

315253 has 4 divisors (see below), whose sum is σ = 316480. Its totient is φ = 314028.

The previous prime is 315251. The next prime is 315257. The reversal of 315253 is 352513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 352513 = 750359.

It is a cyclic number.

It is not a de Polignac number, because 315253 - 21 = 315251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315251) 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, 63 + ... + 796.

It is an arithmetic number, because the mean of its divisors is an integer number (79120).

2315253 is an apocalyptic number.

It is an amenable number.

315253 is a deficient number, since it is larger than the sum of its proper divisors (1227).

315253 is an equidigital number, since it uses as much as digits as its factorization.

315253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its digits is 450, while the sum is 19.

The square root of 315253 is about 561.4739530913. The cubic root of 315253 is about 68.0591325314.

Adding to 315253 its reverse (352513), we get a palindrome (667766).

The spelling of 315253 in words is "three hundred fifteen thousand, two hundred fifty-three".

Divisors: 1 367 859 315253