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2112688369 = 11192062579
BaseRepresentation
bin111110111101101…
…0001000011110001
312110020101200121101
41331323101003301
513311322011434
6545350124401
7103232361211
oct17573210361
95406350541
102112688369
11994615050
124ab650701
1327891127c
14160830241
15c5721b14
hex7ded10f1

2112688369 has 4 divisors (see below), whose sum is σ = 2304750960. Its totient is φ = 1920625780.

The previous prime is 2112688363. The next prime is 2112688373. The reversal of 2112688369 is 9638862112.

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 2112688369 - 217 = 2112557297 is a prime.

It is a super-2 number, since 2×21126883692 = 8926904289015760322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112688363) 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, 96031279 + ... + 96031300.

It is an arithmetic number, because the mean of its divisors is an integer number (576187740).

Almost surely, 22112688369 is an apocalyptic number.

It is an amenable number.

2112688369 is a deficient number, since it is larger than the sum of its proper divisors (192062591).

2112688369 is a wasteful number, since it uses less digits than its factorization.

2112688369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192062590.

The product of its digits is 248832, while the sum is 46.

The square root of 2112688369 is about 45963.9899160201. The cubic root of 2112688369 is about 1283.1531087256.

The spelling of 2112688369 in words is "two billion, one hundred twelve million, six hundred eighty-eight thousand, three hundred sixty-nine".

Divisors: 1 11 192062579 2112688369