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2112120230 = 251119201093
BaseRepresentation
bin111110111100100…
…0110010110100110
312110012022211021012
41331321012112212
513311200321410
6545330022222
7103224503633
oct17571062646
95405284235
102112120230
11994267210
124ab417972
132787727ac
1416072318a
15c565d605
hex7de465a6

2112120230 has 16 divisors (see below), whose sum is σ = 4147436304. Its totient is φ = 768043680.

The previous prime is 2112120229. The next prime is 2112120233. The reversal of 2112120230 is 320212112.

It is a happy number.

It is a super-2 number, since 2×21121202302 = 8922103731950505800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112120233) 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, 9600437 + ... + 9600656.

It is an arithmetic number, because the mean of its divisors is an integer number (259214769).

Almost surely, 22112120230 is an apocalyptic number.

2112120230 is a deficient number, since it is larger than the sum of its proper divisors (2035316074).

2112120230 is a wasteful number, since it uses less digits than its factorization.

2112120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19201111.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2112120230 is about 45957.8092384744. The cubic root of 2112120230 is about 1283.0380776129.

Adding to 2112120230 its reverse (320212112), we get a palindrome (2432332342).

The spelling of 2112120230 in words is "two billion, one hundred twelve million, one hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 19201093 38402186 96005465 192010930 211212023 422424046 1056060115 2112120230