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2012122093 = 15809127277
BaseRepresentation
bin111011111101110…
…1000101111101101
312012020011101121111
41313323220233231
513110100401333
6531354432021
7100601520112
oct16773505755
95166141544
102012122093
11942877123
12481a32611
13260b2cab7
14151332909
15bb9a94cd
hex77ee8bed

2012122093 has 4 divisors (see below), whose sum is σ = 2012265180. Its totient is φ = 2011979008.

The previous prime is 2012122033. The next prime is 2012122117. The reversal of 2012122093 is 3902212102.

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 780252489 + 1231869604 = 27933^2 + 35098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012122093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012122003) 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, 47830 + ... + 79447.

It is an arithmetic number, because the mean of its divisors is an integer number (503066295).

Almost surely, 22012122093 is an apocalyptic number.

It is an amenable number.

2012122093 is a deficient number, since it is larger than the sum of its proper divisors (143087).

2012122093 is a wasteful number, since it uses less digits than its factorization.

2012122093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143086.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2012122093 is about 44856.6839278162. The cubic root of 2012122093 is about 1262.4614044078.

Adding to 2012122093 its reverse (3902212102), we get a palindrome (5914334195).

The spelling of 2012122093 in words is "two billion, twelve million, one hundred twenty-two thousand, ninety-three".

Divisors: 1 15809 127277 2012122093