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2112131099 = 13822119763
BaseRepresentation
bin111110111100100…
…1001000000011011
312110012100101011202
41331321021000123
513311201143344
6545330144415
7103224550421
oct17571110033
95405311152
102112131099
119942743a1
124ab42210b
13278777720
14160727111
15c566194e
hex7de4901b

2112131099 has 8 divisors (see below), whose sum is σ = 2274994512. Its totient is φ = 1949323680.

The previous prime is 2112131093. The next prime is 2112131111. The reversal of 2112131099 is 9901312112.

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 2112131099 - 24 = 2112131083 is a prime.

It is a super-2 number, since 2×21121310992 = 8922195558725895602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112131093) 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, 96992 + ... + 116754.

It is an arithmetic number, because the mean of its divisors is an integer number (284374314).

Almost surely, 22112131099 is an apocalyptic number.

2112131099 is a deficient number, since it is larger than the sum of its proper divisors (162863413).

2112131099 is a wasteful number, since it uses less digits than its factorization.

2112131099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27997.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 2112131099 is about 45957.9274880841. The cubic root of 2112131099 is about 1283.0402784530.

The spelling of 2112131099 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, ninety-nine".

Divisors: 1 13 8221 19763 106873 256919 162471623 2112131099