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11210102209 = 172155324977
BaseRepresentation
bin10100111000010110…
…01001010111000001
31001221020210012021201
422130023021113001
5140424241232314
65052211221201
7544540203505
oct123413112701
931836705251
1011210102209
1148328a0789
12220a2a7801
13109860ab97
14784b62305
15459241b74
hex29c2c95c1

11210102209 has 12 divisors (see below), whose sum is σ = 11916454284. Its totient is φ = 10543468544.

The previous prime is 11210102177. The next prime is 11210102213. The reversal of 11210102209 is 90220101211.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 744198400 + 10465903809 = 27280^2 + 102303^2 .

It is not a de Polignac number, because 11210102209 - 25 = 11210102177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11210102249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436329 + ... + 461305.

It is an arithmetic number, because the mean of its divisors is an integer number (993037857).

Almost surely, 211210102209 is an apocalyptic number.

It is an amenable number.

11210102209 is a deficient number, since it is larger than the sum of its proper divisors (706352075).

11210102209 is a wasteful number, since it uses less digits than its factorization.

11210102209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26564 (or 26547 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 11210102209 in words is "eleven billion, two hundred ten million, one hundred two thousand, two hundred nine".

Divisors: 1 17 289 1553 24977 26401 424609 448817 7218353 38789281 659417777 11210102209