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316345145 = 578418069
BaseRepresentation
bin10010110110110…
…000101100111001
3211001020222221212
4102312300230321
51121441021040
651220212505
710560614024
oct2266605471
9731228855
10316345145
11152628876
1289b3a135
135070179c
143002a1bb
151cb8bd65
hex12db0b39

316345145 has 8 divisors (see below), whose sum is σ = 379709640. Its totient is φ = 253012480.

The previous prime is 316345093. The next prime is 316345147. The reversal of 316345145 is 541543613.

It can be written as a sum of positive squares in 4 ways, for example, as 4787344 + 311557801 = 2188^2 + 17651^2 .

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

It is not a de Polignac number, because 316345145 - 216 = 316279609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (316345147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35171 + ... + 43239.

It is an arithmetic number, because the mean of its divisors is an integer number (47463705).

Almost surely, 2316345145 is an apocalyptic number.

It is an amenable number.

316345145 is a deficient number, since it is larger than the sum of its proper divisors (63364495).

316345145 is an equidigital number, since it uses as much as digits as its factorization.

316345145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15915.

The product of its digits is 21600, while the sum is 32.

The square root of 316345145 is about 17786.0941468328. The cubic root of 316345145 is about 681.3763537482.

Adding to 316345145 its reverse (541543613), we get a palindrome (857888758).

The spelling of 316345145 in words is "three hundred sixteen million, three hundred forty-five thousand, one hundred forty-five".

Divisors: 1 5 7841 8069 39205 40345 63269029 316345145