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2112103030 = 257126311311
BaseRepresentation
bin111110111100100…
…0010001001110110
312110012021221200011
41331321002021312
513311144244110
6545325410434
7103224402532
oct17571021166
95405257604
102112103030
119942552a4
124ab409a1a
13278767a0b
1416071abc2
15c565848a
hex7de42276

2112103030 has 32 divisors (see below), whose sum is σ = 3870332928. Its totient is φ = 829701600.

The previous prime is 2112103013. The next prime is 2112103039. The reversal of 2112103030 is 303012112.

It is a self number, because there is not a number n which added to its sum of digits gives 2112103030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112103039) 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, 181075 + ... + 192385.

It is an arithmetic number, because the mean of its divisors is an integer number (120947904).

Almost surely, 22112103030 is an apocalyptic number.

2112103030 is a deficient number, since it is larger than the sum of its proper divisors (1758229898).

2112103030 is a wasteful number, since it uses less digits than its factorization.

2112103030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11652.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2112103030 is about 45957.6221099395. The cubic root of 2112103030 is about 1283.0345948069.

Adding to 2112103030 its reverse (303012112), we get a palindrome (2415115142).

The spelling of 2112103030 in words is "two billion, one hundred twelve million, one hundred three thousand, thirty".

Divisors: 1 2 5 10 71 142 263 355 526 710 1315 2630 11311 18673 22622 37346 56555 93365 113110 186730 803081 1606162 2974793 4015405 5949586 8030810 14873965 29747930 211210303 422420606 1056051515 2112103030