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2112203013 = 37914236263
BaseRepresentation
bin111110111100101…
…1010100100000101
312110012111000211020
41331321122210011
513311210444023
6545331501353
7103225300164
oct17571324405
95405430736
102112203013
11994313428
124ab457859
132787a138b
141607453db
15c5677de3
hex7de5a905

2112203013 has 16 divisors (see below), whose sum is σ = 2854379520. Its totient is φ = 1389111984.

The previous prime is 2112203003. The next prime is 2112203047. The reversal of 2112203013 is 3103022112.

It is not a de Polignac number, because 2112203013 - 218 = 2111940869 is a prime.

It is a super-2 number, since 2×21122030132 = 8922803136252556338, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2112202983 and 2112203001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112203003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334120 + ... + 340382.

It is an arithmetic number, because the mean of its divisors is an integer number (178398720).

Almost surely, 22112203013 is an apocalyptic number.

It is an amenable number.

2112203013 is a deficient number, since it is larger than the sum of its proper divisors (742176507).

2112203013 is a wasteful number, since it uses less digits than its factorization.

2112203013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7768.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2112203013 is about 45958.7098709265. The cubic root of 2112203013 is about 1283.0548399721.

Adding to 2112203013 its reverse (3103022112), we get a palindrome (5215225125).

The spelling of 2112203013 in words is "two billion, one hundred twelve million, two hundred three thousand, thirteen".

Divisors: 1 3 79 237 1423 4269 6263 18789 112417 337251 494777 1484331 8912249 26736747 704067671 2112203013