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316444531 = 13103236329
BaseRepresentation
bin10010110111001…
…000111101110011
3211001110001021211
4102313020331303
51122002211111
651222300551
710561506544
oct2267107563
9731401254
10316444531
11152696507
1289b87757
1350737ab0
14300544cb
151cbab521
hex12dc8f73

316444531 has 8 divisors (see below), whose sum is σ = 344096480. Its totient is φ = 289265472.

The previous prime is 316444529. The next prime is 316444543. The reversal of 316444531 is 135444613.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 316444531 - 21 = 316444529 is a prime.

It is a super-2 number, since 2×3164445312 = 200274282399619922, which contains 22 as substring.

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 316444493 and 316444502.

It is not an unprimeable number, because it can be changed into a prime (316444501) 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 7 ways as a sum of consecutive naturals, for example, 116826 + ... + 119503.

It is an arithmetic number, because the mean of its divisors is an integer number (43012060).

Almost surely, 2316444531 is an apocalyptic number.

316444531 is a deficient number, since it is larger than the sum of its proper divisors (27651949).

316444531 is a wasteful number, since it uses less digits than its factorization.

316444531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236445.

The product of its digits is 17280, while the sum is 31.

The square root of 316444531 is about 17788.8878516899. The cubic root of 316444531 is about 681.4477021691.

The spelling of 316444531 in words is "three hundred sixteen million, four hundred forty-four thousand, five hundred thirty-one".

Divisors: 1 13 103 1339 236329 3072277 24341887 316444531