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2105101 = 7328837
BaseRepresentation
bin1000000001111100001101
310221221122201
420001330031
51014330401
6113041501
723615215
oct10017415
93857581
102105101
111208659
12856291
1358922b
143cb245
152b8b01
hex201f0d

2105101 has 4 divisors (see below), whose sum is σ = 2134012. Its totient is φ = 2076192.

The previous prime is 2105071. The next prime is 2105111. The reversal of 2105101 is 1015012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1267876 + 837225 = 1126^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105101 - 25 = 2105069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14346 + ... + 14491.

It is an arithmetic number, because the mean of its divisors is an integer number (533503).

22105101 is an apocalyptic number.

It is an amenable number.

2105101 is a deficient number, since it is larger than the sum of its proper divisors (28911).

2105101 is an equidigital number, since it uses as much as digits as its factorization.

2105101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28910.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 2105101 is about 1450.8966193358. The cubic root of 2105101 is about 128.1615189180.

The spelling of 2105101 in words is "two million, one hundred five thousand, one hundred one".

Divisors: 1 73 28837 2105101