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12022109 = 111092919
BaseRepresentation
bin101101110111…
…000101011101
3211121210020022
4231313011131
511034201414
61105401525
7204120611
oct55670535
924553208
1012022109
116871430
1240392a5
13264c098
14184d341
1510c718e
hexb7715d

12022109 has 4 divisors (see below), whose sum is σ = 13115040. Its totient is φ = 10929180.

The previous prime is 12022103. The next prime is 12022133. The reversal of 12022109 is 90122021.

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.

It is a cyclic number.

It is not a de Polignac number, because 12022109 - 24 = 12022093 is a prime.

It is a super-2 number, since 2×120221092 = 289062209615762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022103) 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, 546449 + ... + 546470.

It is an arithmetic number, because the mean of its divisors is an integer number (3278760).

Almost surely, 212022109 is an apocalyptic number.

It is an amenable number.

12022109 is a deficient number, since it is larger than the sum of its proper divisors (1092931).

12022109 is a wasteful number, since it uses less digits than its factorization.

12022109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092930.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12022109 is about 3467.2913059044. The cubic root of 12022109 is about 229.0833649560.

The spelling of 12022109 in words is "twelve million, twenty-two thousand, one hundred nine".

Divisors: 1 11 1092919 12022109