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2112213103 = 711132110103
BaseRepresentation
bin111110111100101…
…1101000001101111
312110012111112122221
41331321131001233
513311211304403
6545332020211
7103225341460
oct17571350157
95405445587
102112213103
1199431aa70
124ab461667
132787a5b50
14160748d67
15c567adbd
hex7de5d06f

2112213103 has 16 divisors (see below), whose sum is σ = 2835979776. Its totient is φ = 1519273440.

The previous prime is 2112213097. The next prime is 2112213107. The reversal of 2112213103 is 3013122112.

It is a cyclic number.

It is not a de Polignac number, because 2112213103 - 213 = 2112204911 is a prime.

It is a super-2 number, since 2×21122131032 = 8922888384969777218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112213107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054051 + ... + 1056052.

It is an arithmetic number, because the mean of its divisors is an integer number (177248736).

Almost surely, 22112213103 is an apocalyptic number.

2112213103 is a deficient number, since it is larger than the sum of its proper divisors (723766673).

2112213103 is a wasteful number, since it uses less digits than its factorization.

2112213103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110134.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2112213103 is about 45958.8196432415. The cubic root of 2112213103 is about 1283.0568830210.

Adding to 2112213103 its reverse (3013122112), we get a palindrome (5125335215).

Subtracting 2112213103 from its reverse (3013122112), we obtain a palindrome (900909009).

It can be divided in two parts, 21122 and 13103, that added together give a square (34225 = 1852).

The spelling of 2112213103 in words is "two billion, one hundred twelve million, two hundred thirteen thousand, one hundred three".

Divisors: 1 7 11 13 77 91 143 1001 2110103 14770721 23211133 27431339 162477931 192019373 301744729 2112213103