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316007231 = 4216411171
BaseRepresentation
bin10010110101011…
…110001100111111
3211000121211102112
4102311132030333
51121344212411
651205044235
710555005611
oct2265361477
9730554375
10316007231
11152417a01
12899b667b
1350613a37
142dd7cdb1
151cb21b8b
hex12d5e33f

316007231 has 8 divisors (see below), whose sum is σ = 317522928. Its totient is φ = 314496000.

The previous prime is 316007207. The next prime is 316007249. The reversal of 316007231 is 132700613.

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 a de Polignac number, because none of the positive numbers 2k-316007231 is a prime.

It is a super-2 number, since 2×3160072312 = 199721140088574722, 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 = 316007197 and 316007206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316007201) 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, 269276 + ... + 270446.

It is an arithmetic number, because the mean of its divisors is an integer number (39690366).

Almost surely, 2316007231 is an apocalyptic number.

316007231 is a deficient number, since it is larger than the sum of its proper divisors (1515697).

316007231 is a wasteful number, since it uses less digits than its factorization.

316007231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 316007231 is about 17776.5922212330. The cubic root of 316007231 is about 681.1336561300.

Adding to 316007231 its reverse (132700613), we get a palindrome (448707844).

The spelling of 316007231 in words is "three hundred sixteen million, seven thousand, two hundred thirty-one".

Divisors: 1 421 641 1171 269861 492991 750611 316007231