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2106105115 = 57320992749
BaseRepresentation
bin111110110001000…
…1001110100011011
312102210000020002011
41331202021310123
513303130330430
6544553050351
7103122412102
oct17542116433
95383006064
102106105115
11990928a44
124a93b69b7
1327744795a
1415d9d9039
15c4d7122a
hex7d889d1b

2106105115 has 16 divisors (see below), whose sum is σ = 2564100000. Its totient is φ = 1660407552.

The previous prime is 2106105091. The next prime is 2106105121. The reversal of 2106105115 is 5115016012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2106105115 - 223 = 2097716507 is a prime.

It is an unprimeable number.

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, 764761 + ... + 767509.

It is an arithmetic number, because the mean of its divisors is an integer number (160256250).

Almost surely, 22106105115 is an apocalyptic number.

2106105115 is a deficient number, since it is larger than the sum of its proper divisors (457994885).

2106105115 is a wasteful number, since it uses less digits than its factorization.

2106105115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 2106105115 is about 45892.3208717973. The cubic root of 2106105115 is about 1281.8189299151.

The spelling of 2106105115 in words is "two billion, one hundred six million, one hundred five thousand, one hundred fifteen".

Divisors: 1 5 73 365 2099 2749 10495 13745 153227 200677 766135 1003385 5770151 28850755 421221023 2106105115