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2112003105 = 353725115161
BaseRepresentation
bin111110111100010…
…1001110000100001
312110012002212121020
41331320221300201
513311133044410
6545323320053
7103223505312
oct17570516041
95405085536
102112003105
11994197213
124ab380029
132787313a4
141606d2609
15c5638a70
hex7de29c21

2112003105 has 32 divisors (see below), whose sum is σ = 3484591488. Its totient is φ = 1091520000.

The previous prime is 2112003073. The next prime is 2112003137. The reversal of 2112003105 is 5013002112.

2112003105 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2112003073) and next prime (2112003137).

It is not a de Polignac number, because 2112003105 - 25 = 2112003073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131725 + ... + 146885.

It is an arithmetic number, because the mean of its divisors is an integer number (108893484).

Almost surely, 22112003105 is an apocalyptic number.

It is an amenable number.

2112003105 is a deficient number, since it is larger than the sum of its proper divisors (1372588383).

2112003105 is a wasteful number, since it uses less digits than its factorization.

2112003105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15457.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2112003105 is about 45956.5349542369. The cubic root of 2112003105 is about 1283.0143607476.

Adding to 2112003105 its reverse (5013002112), we get a palindrome (7125005217).

The spelling of 2112003105 in words is "two billion, one hundred twelve million, three thousand, one hundred five".

Divisors: 1 3 5 15 37 111 185 251 555 753 1255 3765 9287 15161 27861 45483 46435 75805 139305 227415 560957 1682871 2804785 3805411 8414355 11416233 19027055 57081165 140800207 422400621 704001035 2112003105