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2112110131 = 26329327409
BaseRepresentation
bin111110111100100…
…0011111000110011
312110012022022102011
41331321003320303
513311200011011
6545325503351
7103224432325
oct17571037063
95405268364
102112110131
1199425a66a
124ab411b57
1327876b011
1416071d615
15c565a621
hex7de43e33

2112110131 has 8 divisors (see below), whose sum is σ = 2127454560. Its totient is φ = 2096821632.

The previous prime is 2112110123. The next prime is 2112110137. The reversal of 2112110131 is 1310112112.

It is a happy number.

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 2112110131 - 23 = 2112110123 is a prime.

It is a super-2 number, since 2×21121101312 = 8922018410945674322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112110137) 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 7 ways as a sum of consecutive naturals, for example, 63355 + ... + 90763.

It is an arithmetic number, because the mean of its divisors is an integer number (265931820).

Almost surely, 22112110131 is an apocalyptic number.

2112110131 is a deficient number, since it is larger than the sum of its proper divisors (15344429).

2112110131 is a wasteful number, since it uses less digits than its factorization.

2112110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27965.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2112110131 is about 45957.6993658299. The cubic root of 2112110131 is about 1283.0360326816.

Adding to 2112110131 its reverse (1310112112), we get a palindrome (3422222243).

The spelling of 2112110131 in words is "two billion, one hundred twelve million, one hundred ten thousand, one hundred thirty-one".

Divisors: 1 263 293 27409 77059 7208567 8030837 2112110131