Search a number
-
+
313304261 = 675099187
BaseRepresentation
bin10010101011001…
…010010011000101
3210211112111122112
4102223022103011
51120201214021
651031110405
710523020334
oct2253122305
9724474575
10313304261
11150941146
1288b12405
134cba864a
142d877d1b
151c78ad5b
hex12aca4c5

313304261 has 8 divisors (see below), whose sum is σ = 318639840. Its totient is φ = 307988208.

The previous prime is 313304227. The next prime is 313304263. The reversal of 313304261 is 162403313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313304261 is a prime.

It is a super-2 number, since 2×3133042612 = 196319119921512242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313304263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29510 + ... + 38696.

It is an arithmetic number, because the mean of its divisors is an integer number (39829980).

Almost surely, 2313304261 is an apocalyptic number.

It is an amenable number.

313304261 is a deficient number, since it is larger than the sum of its proper divisors (5335579).

313304261 is an equidigital number, since it uses as much as digits as its factorization.

313304261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9763.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 313304261 is about 17700.4028485230. The cubic root of 313304261 is about 679.1860654995.

Adding to 313304261 its reverse (162403313), we get a palindrome (475707574).

The spelling of 313304261 in words is "three hundred thirteen million, three hundred four thousand, two hundred sixty-one".

Divisors: 1 67 509 9187 34103 615529 4676183 313304261