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316948369 = 1601197969
BaseRepresentation
bin10010111001000…
…011111110010001
3211002101122102111
4102321003332101
51122114321434
651241145321
710566005503
oct2271037621
9732348374
10316948369
11152a00001
128a18b241
135088321a
1430145d73
151cc5a964
hex12e43f91

316948369 has 4 divisors (see below), whose sum is σ = 317147940. Its totient is φ = 316748800.

The previous prime is 316948361. The next prime is 316948381. The reversal of 316948369 is 963849613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177235969 + 139712400 = 13313^2 + 11820^2 .

It is a cyclic number.

It is not a de Polignac number, because 316948369 - 23 = 316948361 is a prime.

It is a super-2 number, since 2×3169483692 = 200912537223520322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316948361) 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, 97384 + ... + 100585.

It is an arithmetic number, because the mean of its divisors is an integer number (79286985).

Almost surely, 2316948369 is an apocalyptic number.

It is an amenable number.

316948369 is a deficient number, since it is larger than the sum of its proper divisors (199571).

316948369 is a wasteful number, since it uses less digits than its factorization.

316948369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199570.

The product of its digits is 839808, while the sum is 49.

The square root of 316948369 is about 17803.0438127866. The cubic root of 316948369 is about 681.8091738279.

The spelling of 316948369 in words is "three hundred sixteen million, nine hundred forty-eight thousand, three hundred sixty-nine".

Divisors: 1 1601 197969 316948369