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2112130206 = 232647181361
BaseRepresentation
bin111110111100100…
…1000110010011110
312110012100022221200
41331321020302132
513311201131311
6545330140330
7103224545004
oct17571106236
95405308850
102112130206
1199427375a
124ab4216a6
132787771b4
14160726a74
15c5661556
hex7de48c9e

2112130206 has 24 divisors (see below), whose sum is σ = 4583380464. Its totient is φ = 702951360.

The previous prime is 2112130187. The next prime is 2112130247. The reversal of 2112130206 is 6020312112.

It is a super-2 number, since 2×21121302062 = 8922188014195204872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79035 + ... + 102326.

It is an arithmetic number, because the mean of its divisors is an integer number (190974186).

Almost surely, 22112130206 is an apocalyptic number.

2112130206 is an abundant number, since it is smaller than the sum of its proper divisors (2471250258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112130206 is a wasteful number, since it uses less digits than its factorization.

2112130206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182016 (or 182013 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2112130206 is about 45957.9177726755. The cubic root of 2112130206 is about 1283.0400976317.

Adding to 2112130206 its reverse (6020312112), we get a palindrome (8132442318).

The spelling of 2112130206 in words is "two billion, one hundred twelve million, one hundred thirty thousand, two hundred six".

Divisors: 1 2 3 6 9 18 647 1294 1941 3882 5823 11646 181361 362722 544083 1088166 1632249 3264498 117340567 234681134 352021701 704043402 1056065103 2112130206