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316741220 = 225149157677
BaseRepresentation
bin10010111000010…
…001011001100100
3211002000010021022
4102320101121210
51122041204340
651232510312
710564153535
oct2270213144
9732003238
10316741220
11152879404
128a0ab398
135080cb53
14300d068c
151cc193b5
hex12e11664

316741220 has 48 divisors (see below), whose sum is σ = 674881200. Its totient is φ = 124859904.

The previous prime is 316741207. The next prime is 316741223. The reversal of 316741220 is 22147613.

It can be written as a sum of positive squares in 8 ways, for example, as 541696 + 316199524 = 736^2 + 17782^2 .

It is a super-3 number, since 3×3167412203 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 316741220.

It is not an unprimeable number, because it can be changed into a prime (316741223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467522 + ... + 468198.

It is an arithmetic number, because the mean of its divisors is an integer number (14060025).

Almost surely, 2316741220 is an apocalyptic number.

It is an amenable number.

316741220 is an abundant number, since it is smaller than the sum of its proper divisors (358139980).

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

316741220 is a wasteful number, since it uses less digits than its factorization.

316741220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 316741220 is about 17797.2250645993. The cubic root of 316741220 is about 681.6606040261.

Adding to 316741220 its reverse (22147613), we get a palindrome (338888833).

The spelling of 316741220 in words is "three hundred sixteen million, seven hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 149 157 298 314 596 628 677 745 785 1354 1490 1570 2708 2980 3140 3385 6770 13540 23393 46786 93572 100873 106289 116965 201746 212578 233930 403492 425156 467860 504365 531445 1008730 1062890 2017460 2125780 15837061 31674122 63348244 79185305 158370610 316741220