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11200122109 = 111922820479
BaseRepresentation
bin10100110111001010…
…00100110011111101
31001220120000011011101
422123211010303331
5140414212401414
65051213253101
7544356316141
oct123345046375
931816004141
1011200122109
1148281a4570
122206a94191
1310965253b7
147836c5221
1545841ea74
hex29b944cfd

11200122109 has 12 divisors (see below), whose sum is σ = 12895234560. Its totient is φ = 9646034760.

The previous prime is 11200122107. The next prime is 11200122119. The reversal of 11200122109 is 90122100211.

It is a happy number.

It is not a de Polignac number, because 11200122109 - 21 = 11200122107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200122107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1406269 + ... + 1414210.

It is an arithmetic number, because the mean of its divisors is an integer number (1074602880).

Almost surely, 211200122109 is an apocalyptic number.

11200122109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11200122109 is a deficient number, since it is larger than the sum of its proper divisors (1695112451).

11200122109 is a wasteful number, since it uses less digits than its factorization.

11200122109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820528 (or 2820509 counting only the distinct ones).

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

The spelling of 11200122109 in words is "eleven billion, two hundred million, one hundred twenty-two thousand, one hundred nine".

Divisors: 1 11 19 209 361 3971 2820479 31025269 53589101 589480111 1018192919 11200122109