Search a number
-
+
316660 = 22571223
BaseRepresentation
bin1001101010011110100
3121002101011
41031103310
540113120
610442004
72456131
oct1152364
9532334
10316660
111a6a03
12133304
13b1196
1483588
1563c5a
hex4d4f4

316660 has 24 divisors (see below), whose sum is σ = 677376. Its totient is φ = 124320.

The previous prime is 316649. The next prime is 316661. The reversal of 316660 is 66613.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316661) by changing a digit.

316660 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 7 ways as a sum of consecutive naturals, for example, 1309 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (28224).

2316660 is an apocalyptic number.

It is an amenable number.

316660 is an abundant number, since it is smaller than the sum of its proper divisors (360716).

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

316660 is a wasteful number, since it uses less digits than its factorization.

316660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 316660 is about 562.7255103512. The cubic root of 316660 is about 68.1602334369.

Subtracting from 316660 its reverse (66613), we obtain a cube (250047 = 633).

The spelling of 316660 in words is "three hundred sixteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 71 142 223 284 355 446 710 892 1115 1420 2230 4460 15833 31666 63332 79165 158330 316660