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220131106 = 2138321229
BaseRepresentation
bin11010001111011…
…10111100100010
3120100012211002221
431013232330202
5422323143411
633502101254
75312040436
oct1507567442
9510184087
10220131106
11103292838
126187a82a
13367b52c0
14213429c6
15144d4071
hexd1eef22

220131106 has 24 divisors (see below), whose sum is σ = 360225180. Its totient is φ = 100293216.

The previous prime is 220131089. The next prime is 220131133. The reversal of 220131106 is 601131022.

220131106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 215825481 + 4305625 = 14691^2 + 2075^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220131106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178500 + ... + 179728.

Almost surely, 2220131106 is an apocalyptic number.

220131106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

220131106 is a deficient number, since it is larger than the sum of its proper divisors (140094074).

220131106 is a wasteful number, since it uses less digits than its factorization.

220131106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 220131106 is about 14836.8158982984. The cubic root of 220131106 is about 603.8009683677.

Adding to 220131106 its reverse (601131022), we get a palindrome (821262128).

The spelling of 220131106 in words is "two hundred twenty million, one hundred thirty-one thousand, one hundred six".

Divisors: 1 2 13 26 83 166 1079 1229 2158 2458 6889 13778 15977 31954 89557 102007 179114 204014 1326091 2652182 8466581 16933162 110065553 220131106