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316830 = 23559179
BaseRepresentation
bin1001101010110011110
3121002121110
41031112132
540114310
610442450
72456463
oct1152636
9532543
10316830
111a7048
12133426
13b1297
148366a
1563d20
hex4d59e

316830 has 32 divisors (see below), whose sum is σ = 777600. Its totient is φ = 82592.

The previous prime is 316819. The next prime is 316847. The reversal of 316830 is 38613.

It is a junction number, because it is equal to n+sod(n) for n = 316797 and 316806.

It is a congruent number.

It is an unprimeable number.

316830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681 + ... + 1859.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2316830 is an apocalyptic number.

316830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 316830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388800).

316830 is an abundant number, since it is smaller than the sum of its proper divisors (460770).

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

316830 is a wasteful number, since it uses less digits than its factorization.

316830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 316830 is about 562.8765406375. The cubic root of 316830 is about 68.1724286060.

The spelling of 316830 in words is "three hundred sixteen thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 179 295 354 358 537 590 885 895 1074 1770 1790 2685 5370 10561 21122 31683 52805 63366 105610 158415 316830