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316386 = 236731
BaseRepresentation
bin1001101001111100010
3121002000000
41031033202
540111021
610440430
72455260
oct1151742
9532000
10316386
111a6784
12133116
13b1015
1483430
1563b26
hex4d3e2

316386 has 56 divisors (see below), whose sum is σ = 839424. Its totient is φ = 87480.

The previous prime is 316373. The next prime is 316391. The reversal of 316386 is 683613.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

316386 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 10191 + ... + 10221.

316386 is a Friedman number, since it can be written as 31*(8+6)*3^6, using all its digits and the basic arithmetic operations.

2316386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419712).

316386 is an abundant number, since it is smaller than the sum of its proper divisors (523038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316386 is an equidigital number, since it uses as much as digits as its factorization.

316386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 43 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 316386 is about 562.4819997120. The cubic root of 316386 is about 68.1405685037.

Adding to 316386 its reverse (683613), we get a palindrome (999999).

It can be divided in two parts, 3163 and 86, that added together give a square (3249 = 572).

The spelling of 316386 in words is "three hundred sixteen thousand, three hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 27 31 42 54 62 63 81 93 126 162 186 189 217 243 279 378 434 486 558 567 651 729 837 1134 1302 1458 1674 1701 1953 2511 3402 3906 5022 5103 5859 7533 10206 11718 15066 17577 22599 35154 45198 52731 105462 158193 316386