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220313310 = 23572149873
BaseRepresentation
bin11010010000110…
…11011011011110
3120100120002001020
431020123123132
5422400011220
633510025010
75313426600
oct1510333336
9510502036
10220313310
111033a7718
1261948166
133684a209
142138d170
151451d040
hexd21b6de

220313310 has 48 divisors (see below), whose sum is σ = 615082896. Its totient is φ = 50356992.

The previous prime is 220313309. The next prime is 220313323. The reversal of 220313310 is 13313022.

It is a super-2 number, since 2×2203133102 = 97075909126312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220313310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73467 + ... + 76406.

It is an arithmetic number, because the mean of its divisors is an integer number (12814227).

Almost surely, 2220313310 is an apocalyptic number.

220313310 is an abundant number, since it is smaller than the sum of its proper divisors (394769586).

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

220313310 is a wasteful number, since it uses less digits than its factorization.

220313310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149897 (or 149890 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 220313310 is about 14842.9548944946. The cubic root of 220313310 is about 603.9675124698.

Adding to 220313310 its reverse (13313022), we get a palindrome (233626332).

The spelling of 220313310 in words is "two hundred twenty million, three hundred thirteen thousand, three hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 149873 299746 449619 749365 899238 1049111 1498730 2098222 2248095 3147333 4496190 5245555 6294666 7343777 10491110 14687554 15736665 22031331 31473330 36718885 44062662 73437770 110156655 220313310