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312314245 = 562462849
BaseRepresentation
bin10010100111011…
…000100110000101
3210202200012121021
4102213120212011
51114423023440
650553551141
710511425105
oct2247304605
9722605537
10312314245
11150325351
12887154b1
134c91cb39
142d69b205
151c64284a
hex129d8985

312314245 has 4 divisors (see below), whose sum is σ = 374777100. Its totient is φ = 249851392.

The previous prime is 312314239. The next prime is 312314287. The reversal of 312314245 is 542413213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542413213 = 555797609.

It can be written as a sum of positive squares in 2 ways, for example, as 229613409 + 82700836 = 15153^2 + 9094^2 .

It is a cyclic number.

It is not a de Polignac number, because 312314245 - 213 = 312306053 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31231420 + ... + 31231429.

It is an arithmetic number, because the mean of its divisors is an integer number (93694275).

Almost surely, 2312314245 is an apocalyptic number.

It is an amenable number.

312314245 is a deficient number, since it is larger than the sum of its proper divisors (62462855).

312314245 is an equidigital number, since it uses as much as digits as its factorization.

312314245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62462854.

The product of its digits is 2880, while the sum is 25.

The square root of 312314245 is about 17672.4148038688. The cubic root of 312314245 is about 678.4699197268.

Adding to 312314245 its reverse (542413213), we get a palindrome (854727458).

The spelling of 312314245 in words is "three hundred twelve million, three hundred fourteen thousand, two hundred forty-five".

Divisors: 1 5 62462849 312314245