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2112030431 = 7893390097
BaseRepresentation
bin111110111100011…
…0000011011011111
312110012011021002022
41331320300123133
513311134433211
6545324050355
7103223651060
oct17570603337
95405137068
102112030431
119942057a5
124ab3939bb
13278740964
141606dc567
15c5641bdb
hex7de306df

2112030431 has 8 divisors (see below), whose sum is σ = 2440870560. Its totient is φ = 1789970688.

The previous prime is 2112030419. The next prime is 2112030439. The reversal of 2112030431 is 1340302112.

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 2112030431 - 218 = 2111768287 is a prime.

It is a super-2 number, since 2×21120304312 = 8921345082940091522, 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 (2112030439) 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, 1694426 + ... + 1695671.

It is an arithmetic number, because the mean of its divisors is an integer number (305108820).

Almost surely, 22112030431 is an apocalyptic number.

2112030431 is a deficient number, since it is larger than the sum of its proper divisors (328840129).

2112030431 is an equidigital number, since it uses as much as digits as its factorization.

2112030431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390193.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2112030431 is about 45956.8322559334. The cubic root of 2112030431 is about 1283.0198941201.

Adding to 2112030431 its reverse (1340302112), we get a palindrome (3452332543).

The spelling of 2112030431 in words is "two billion, one hundred twelve million, thirty thousand, four hundred thirty-one".

Divisors: 1 7 89 623 3390097 23730679 301718633 2112030431