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2112032009 = 17679318289
BaseRepresentation
bin111110111100011…
…0000110100001001
312110012011100020202
41331320300310021
513311140011014
6545324101545
7103223655503
oct17570606411
95405140222
102112032009
119942069aa
124ab3948b5
132787415a9
141606dcd73
15c56423de
hex7de30d09

2112032009 has 8 divisors (see below), whose sum is σ = 2236720680. Its totient is φ = 1987393536.

The previous prime is 2112031993. The next prime is 2112032011. The reversal of 2112032009 is 9002302112.

It can be written as a sum of positive squares in 4 ways, for example, as 763306384 + 1348725625 = 27628^2 + 36725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112032009 - 24 = 2112031993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112032029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106337 + ... + 124625.

It is an arithmetic number, because the mean of its divisors is an integer number (279590085).

Almost surely, 22112032009 is an apocalyptic number.

It is an amenable number.

2112032009 is a deficient number, since it is larger than the sum of its proper divisors (124688671).

2112032009 is a wasteful number, since it uses less digits than its factorization.

2112032009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25099.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2112032009 is about 45956.8494242153. The cubic root of 2112032009 is about 1283.0202136554.

The spelling of 2112032009 in words is "two billion, one hundred twelve million, thirty-two thousand, nine".

Divisors: 1 17 6793 18289 115481 310913 124237177 2112032009