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316003631 = 2459128509
BaseRepresentation
bin10010110101011…
…101010100101111
3211000121122111012
4102311131110233
51121344104011
651205015435
710554662246
oct2265352457
9730548435
10316003631
11152415229
12899b457b
13506121c8
142dd7b95d
151cb20a8b
hex12d5d52f

316003631 has 4 divisors (see below), whose sum is σ = 316134600. Its totient is φ = 315872664.

The previous prime is 316003627. The next prime is 316003637. The reversal of 316003631 is 136300613.

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

It is a cyclic number.

It is not a de Polignac number, because 316003631 - 22 = 316003627 is a prime.

It is a super-2 number, since 2×3160036312 = 199716589610368322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316003597 and 316003606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316003637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61796 + ... + 66713.

It is an arithmetic number, because the mean of its divisors is an integer number (79033650).

Almost surely, 2316003631 is an apocalyptic number.

316003631 is a deficient number, since it is larger than the sum of its proper divisors (130969).

316003631 is a wasteful number, since it uses less digits than its factorization.

316003631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130968.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 316003631 is about 17776.4909641920. The cubic root of 316003631 is about 681.1310695959.

The spelling of 316003631 in words is "three hundred sixteen million, three thousand, six hundred thirty-one".

Divisors: 1 2459 128509 316003631