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51112093 = 214123873
BaseRepresentation
bin1100001011111…
…0100010011101
310120011202121111
43002332202131
5101041041333
65023302021
71160305564
oct302764235
9116152544
1051112093
11269402aa
121514a911
13a787656
146b06bdb
1547494cd
hex30be89d

51112093 has 4 divisors (see below), whose sum is σ = 51138108. Its totient is φ = 51086080.

The previous prime is 51112091. The next prime is 51112151. The reversal of 51112093 is 39021115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29181604 + 21930489 = 5402^2 + 4683^2 .

It is a cyclic number.

It is not a de Polignac number, because 51112093 - 21 = 51112091 is a prime.

It is a super-2 number, since 2×511120932 = 5224892101681298, 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 (51112091) 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, 9796 + ... + 14077.

It is an arithmetic number, because the mean of its divisors is an integer number (12784527).

Almost surely, 251112093 is an apocalyptic number.

It is an amenable number.

51112093 is a deficient number, since it is larger than the sum of its proper divisors (26015).

51112093 is a wasteful number, since it uses less digits than its factorization.

51112093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26014.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 51112093 is about 7149.2722007209. The cubic root of 51112093 is about 371.1144702871.

The spelling of 51112093 in words is "fifty-one million, one hundred twelve thousand, ninety-three".

Divisors: 1 2141 23873 51112093