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220110109 = 943123339
BaseRepresentation
bin11010001111010…
…01110100011101
3120100011202022021
431013221310131
5422322010414
633501420141
75311622302
oct1507516435
9510152267
10220110109
11103278a8a
126186a651
13367a888b
14213390a9
15144ccc24
hexd1e9d1d

220110109 has 4 divisors (see below), whose sum is σ = 220142880. Its totient is φ = 220077340.

The previous prime is 220110049. The next prime is 220110173. The reversal of 220110109 is 901011022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 901011022 = 2450505511.

It is a cyclic number.

It is not a de Polignac number, because 220110109 - 29 = 220109597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220110092 and 220110101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239 + ... + 21100.

It is an arithmetic number, because the mean of its divisors is an integer number (55035720).

Almost surely, 2220110109 is an apocalyptic number.

It is an amenable number.

220110109 is a deficient number, since it is larger than the sum of its proper divisors (32771).

220110109 is an equidigital number, since it uses as much as digits as its factorization.

220110109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32770.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 220110109 is about 14836.1082835089. The cubic root of 220110109 is about 603.7817700934.

The spelling of 220110109 in words is "two hundred twenty million, one hundred ten thousand, one hundred nine".

Divisors: 1 9431 23339 220110109