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2211100112 = 241310630289
BaseRepresentation
bin1000001111001010…
…1011010111010000
312201002120112010202
42003302223113100
514012020200422
61003223314332
7105536020004
oct20362532720
95632515122
102211100112
11a35121271
125185ab9a8
13293119b80
1416d92a704
15ce1b0b92
hex83cab5d0

2211100112 has 20 divisors (see below), whose sum is σ = 4613545860. Its totient is φ = 1020507648.

The previous prime is 2211100103. The next prime is 2211100117. The reversal of 2211100112 is 2110011122.

It can be written as a sum of positive squares in 2 ways, for example, as 604373056 + 1606727056 = 24584^2 + 40084^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2211100093 and 2211100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211100117) 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, 5314937 + ... + 5315352.

It is an arithmetic number, because the mean of its divisors is an integer number (230677293).

Almost surely, 22211100112 is an apocalyptic number.

It is an amenable number.

2211100112 is an abundant number, since it is smaller than the sum of its proper divisors (2402445748).

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

2211100112 is a wasteful number, since it uses less digits than its factorization.

2211100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10630310 (or 10630304 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2211100112 is about 47022.3363094604. The cubic root of 2211100112 is about 1302.7751587286.

Adding to 2211100112 its reverse (2110011122), we get a palindrome (4321111234).

The spelling of 2211100112 in words is "two billion, two hundred eleven million, one hundred thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 10630289 21260578 42521156 85042312 138193757 170084624 276387514 552775028 1105550056 2211100112